浙大JAVA 实验题答案

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浙大JAVA实验题答案

实验8 Method的使用1.程序填空题,不要改变与输入输出有关的语句;50001输入一个正整数repeat 0<repeat<10,做repeat次下列运算：输入1 个正整数n,计算 s 的前n项的和保留 4 位小数;s = 1 + 1/2 +....+ 1/n要求定义并调用函数factn计算n的阶乘;例：括号内是说明输入：2 repeat=22 n=210 n=10输出：public class Test50001 {public static void mainString args {int ri,repeat;int i,n;double s;Scanner in=new Scanner;repeat=;forri=1;ri<=repeat;ri++{n=;/-----------/s=0;for i=1;i<=n;i++s+=fact i;}}/---------------/static double fact int n {int i;double f=1;for i=1;i<=n;i++f=i;return f;}}50002输入一个正整数repeat 0<repeat<10,做repeat次下列运算：输入2个正整数a和n, 求a+aa+aaa+aa…an个a之和;要求定义并调用函数fna,n,它的功能是返回aa…an个a;例如,fn3,2的返回值是33;例：括号内是说明输入2 repeat=22 3 a=2, n=38 5 a=8, n=5输出246 2+22+22298760 8+88+888+8888+88888imponner;public class Test50002{public static void mainString args{int ri, repeat;int i, n,a;long sn;Scanner in=new Scanner;repeat=;forri=1; ri<=repeat; ri++{a=;n=;/------------/sn=0;for i=1;i<=n;i++sn+=fn a,i;}}/------------/s tatic int fn int a,int n{int s=0;forint i=1;i<=n;i++s=s10+a;return s;}}50003输入一个正整数repeat 0<repeat<10,做repeat次下列运算：读入1 个整数,统计并输出该数中2的个数;要求定义并调用函数countdigitnumber,digit,它的功能是统计整数number中数字digit的个数;例如,countdigit10090,0的返回值是3;例：括号内是说明输入：3 repeat=3-219022345543输出：count=2 -21902中有2个2count=1 有1个2count=0 345543中没有2public class Test50003{public static void mainString args{int ri, repeat;int count;long n;Scanner in=new Scanner;repeat=;forri=1; ri<=repeat; ri++{n=;/---------/n=n;count=countdigit n,2;}}/------------/static int countdigit long number,int digit{....要求定义并调用函数fibn,它的功能是返回第n项Fibonacci数;例如,fib7的返回值是13;例：括号内是说明输入：3 repeat=31 10 m=1, n=1020 100 m=20, n=1001000 6000 m=1000, n=6000输出：1 123 5 8 1到10之间的Fibonacci数21 34 55 89 20到100之间的Fibonacci数1597 2584 4181 1000到6000之间的Fibonacci数public class Test50006{public static void mainString args{int ri,repeat;int i, m, n;long f;Scanner in=new Scanner;repeat=;forri=1; ri<=repeat; ri++{m=;n=;/---------/i=1;f=1;while f<=n{if f>=m " ";i++;f=fib i;}}}/------------/sta ti c long fib int n{ //返回第n项Fibonacci数int i;long a=1,b=1,f=1;for i=3;i<=n;i++{ //从第3项开始计算f=a+b;a=b;b=f;}return f;}}50007输入一个正整数repeat 0<repeat<10,做repeat次下列运算：输入2 个正整数m和n1<=m,n<=10000,输出m 到n之间的所有完数完数就是因子和与它本身相等的数;要求定义并调用函数factorsumnumber,它的功能是返回number的因子和;例如,factorsum12的返回值是161+2+3+4+6;例：括号内是说明输入：2 repeat=220 500 m=100, n=4001 100 m=1, n=100输出：28 4961 6 28public class Test50007{public static void mainString args{int ri,repeat;int i, m, n;Scanner in=new Scanner;repeat=;forri=1;ri<=repeat;ri++{m=;n=;/---------/for i=m;i<=n;i++if i==factorsum i" ";}}/---------/static int factorsum int number{ //返回number的因子和int sum=0;if number==1sum=1;forint i=1;i<=number-1;i++if number%i==0sum+=i;return sum;}}50008输入一个正整数repeat 0<repeat<10,做repeat次下列运算：输入2 个正整数m和n1<=m,n<=1000,输出m 到n之间的所有满足各位数字的立方和等于它本身的数;要求定义并调用函数isnumber判断number的各位数字之立方和是否等于它本身;例：括号内是说明输入：2 repeat=2100 400 m=100, n=4001 100 m=1, n=100输出：153 370 371 111+555+333=153; 333+777=370; 333+777+111=3711public class Test50008{public static void mainString args{int ri,repeat;int i, m, n;Scanner in=new Scanner;repeat=;forri=1;ri<=repeat;ri++{m=;n=;/---------/for i=m;i<=n;i++if is i" ";}}/---------///判断number的各位数字之立方和是否等于它本身static boolean is int number{int sum=0,n,digit;n=number;while n>0{digit=n%10;n=n/10;sum+=digitdigitdigit;}if number==sum return true;else return false;}}50009输入一个正整数repeat 0<repeat<10,做repeat次下列运算：输入一个整数,将它逆序输出;要求定义并调用函数reversenumber,它的功能是返回number的逆序数;例如reverse12345的返回值是54321;例：括号内是说明输入4 repeat=4123456 -100 -2 99输出654321-1-299public class Test50009{public static void mainString args{int ri,repeat;long n, res;Scanner in=new Scanner;repeat=;forri=1;ri<=repeat;ri++{n=;/---------/res=reverse n;}}/---------/static long reverse long number{//返回number的逆序数int flag=1;long a=0,digit;if number<0{flag=-1;number=-number;}while number>0{digit=number%10; //分离出个位数字a=a10+digit; //形成当前的逆序数number=number/10;}return flaga;}}50011输入一个正整数repeat 0<repeat<10,做repeat次下列运算：输入三个整数a、b和c,输出其中较大的数;要求定义和调用函数maxa, b, c找出a、b中较大的数,函数形参a、b和c的类型是int;输入输出示例：括号内是说明输入3 repeat=3输入：5 8 9 a=5, b=8-1 -10 -5 a=-1, b=-101 1 1 a=1, b=1输出：max5,8,9=9max-1,-10,-5=-1max1,1,1=1public class Test50011 {public static void mainString args {int ri, repeat;int a,b,c,maximun;Scanner in = new Scanner;repeat = ;for ri = 1; ri <= repeat; ri++ {a = ;b = ;c=;/-----------------/maximun=maximuna,b,c;Sy}}/-------------------/static int maximunint a,int b,int c{int max=a;ifmax<bmax=b;ifmax<cmax=c;return max;}}。

浙大java练习题答案

40001import class Test40001 {public static void main(String[] args) { int ri, repeat;int i, n;float sum;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/}}}40002import class Test40002 {public static void main(String[] args) { int ri, repeat;int i, n;double fact;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/}}}40003import class Test40003 {int ri, repeat;int i, n;double x, mypow;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){x=();n=();/*--------------------*/}}}40004import class Test40004 {int ri, repeat;int i, n, flag;float sum;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/}}}40005import class Test40005 {public static void main(String[] args) {int ri, repeat;int i, n, temp;float sum;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/sum=0;for(i=1;i<=n;i++){sum=(float) (sum+(2*i-1));}}}}40006import class Test40006 {public static void main(String[] args) { int ri, repeat;int temp, flag;double eps, item, sum;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){eps=();/*--------------------*/}}}40007import class Test40007 {public static void main(String[] args){ int ri, repeat;int begin, c, end, f;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){begin=();end=();"Celsius Fahrenheit");/*--------------------*/" "+f);}}}}40008import class Test40008 {public static void main(String[] args){ int ri, repeat;int x, sum;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){x=();/*--------------------*/}}}}40009import class Test40009 {public static void main(String[] args){ int ri, repeat;int i , max, n, x;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/}}}}40010import class Test40010 {public static void main(String[] args){int ri, repeat;int number, sum,n,r;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/"number="+number+", sum="+sum);}}}40011import class Test40011 {public static void main(String[] args) { int ri, repeat;int i,n;float a,b,s,t;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/}}}40012import class Test40012{public static void main(String args[]){int i, n, a, sn, tn;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){a=();n=();/*--------------------*/}}}40013import class Test40013{public static void main(String args[]){ int ri, repeat;boolean flag=true;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){m=();/*--------------------*/}if(flag) "YES");else"NO");}}}40014import .*;public class Test40014 {public static void main(String []args){Scanner in =new Scanner;int gcd, lcm, m, n,r;int repeat, ri;repeat=();for(ri = 1; ri <= repeat; ri++){m=();n=();if(m <= 0 || n <= 0)"m <= 0 or n <= 0");else{/*---------*/"the least common multiple:"+lcm+", the greatest common divisor:"+gcd);}}}}40021import class Test40021{public static void main(String args[]){ int ri, repeat;int i,n;float s,t;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){n=();/*--------------------*/}}}40022import class Test40022{public static void main(String args[]){ int ri, repeat;int i, digit, m, n, number, sum;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){m=();n=();/*------------------*/}}40023import class Test40023{public static void main(String args[]){int ri, repeat;int count, i, j, k, m, n, sum;Scanner in=new Scanner;repeat=();for(ri=1; ri<=repeat; ri++){m=();n=();/*---------------------*/"count="+count+", sum="+sum);}}40031import class Test40031{public static void main(String []args ){ int ri, repeat,count, word,i;String line;char c;Scanner in=new Scanner;repeat=()).charAt(0)-'0'; harAt(0);/*---------*/}}}40034import class Test40034{public static void main(String []args){ int year,m,n,repeat,ri;Scanner in=new Scanner;repeat=();for(ri=1;ri<=repeat;ri++){m=();n=();/*---------*/}}}40035import class Test40035{public static void main(String []args){ int m,n,repeat,ri;Scanner in=new Scanner;repeat=();for(ri=1;ri<=repeat;ri++){n=();m=();/*---------*/}}}40036import class Test40036{public static void main(String []args){ int days,repeat,ri;Scanner in=new Scanner;repeat=();for(ri=1;ri<=repeat;ri++){}}}40037import class Test40037{public static void main(String []args){ int a,n,ri,count,number;double sum,ave;Scanner in=new Scanner;n=();for(ri=1;ri<=n;ri++){/。

浙大java练习题答案-40001-50004

浙大java练习题答案-40001-50004LT40001import java.util.Scanner;public class Test40001 {public static void main(String[] args) { int ri, repeat;int i, n;float sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((int)(sum*1000+0.5)/10 00.);}}}40002import java.util.Scanner;public class Test40002 {public static void main(String[] args) { int ri, repeat;int i, n;double fact;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println(fact);}}}40003import java.util.Scanner;public class Test40003 {public static void main(String[] args) { int ri, repeat;int i, n;double x, mypow;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){x=in.nextDouble();n=in.nextInt();/*--------------------*/System.out.println(mypow);}}}40004import java.util.Scanner;public class Test40004 {public static void main(String[] args) {int ri, repeat;int i, n, flag;float sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((long)(sum*10000+0.5)/10000.);}}}40005import java.util.Scanner;public class Test40005 {public static void main(String[] args) {int ri, repeat;int i, n, temp;float sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/sum=0;for(i=1;i<=n;i++){sum=(float) (sum+1.0/(2*i-1));}System.out.println(sum);}}}40006import java.util.Scanner;public class Test40006 {public static void main(String[] args) {int ri, repeat;int temp, flag;double eps, item, sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){eps=in.nextDouble();/*--------------------*/System.out.println((int)(sum*10000+0.5)/10000.);}}}40007import java.util.Scanner;public class Test40007 {public static void main(String[] args){ int ri, repeat;int begin, c, end, f;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){begin=in.nextInt();end=in.nextInt();System.out.println("Celsius Fahrenheit");/*--------------------*/System.out.println(c+" "+f);}}}}40008import java.util.Scanner;public class Test40008 {public static void main(String[] args){ int ri, repeat;int x, sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){x=in.nextInt();/*--------------------*/}System.out.println(sum);}}}40009import java.util.Scanner;public class Test40009 {public static void main(String[] args){ int ri, repeat;int i , max, n, x;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/}System.out.println(max);}}}40010import java.util.Scanner;public class Test40010 {public static void main(String[] args){int ri, repeat;int number, sum,n,r;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println("number="+number+", sum="+sum); }}}40011import java.util.Scanner;public class Test40011 {public static void main(String[] args) {int ri, repeat;int i,n;float a,b,s,t;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((int)(s*10000+.5)/10000.); }}}40012import java.util.Scanner;public class Test40012{public static void main(String args[]){int ri, repeat;int i, n, a, sn, tn;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){a=in.nextInt();n=in.nextInt();/*--------------------*/System.out.println(sn);}}}40013import java.util.Scanner;public class Test40013{public static void main(String args[]){ int ri, repeat;int i, m, n;boolean flag=true;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){m=in.nextInt();/*--------------------*/}if(flag) System.out.println("YES");else System.out.println("NO");}}}40014import java.util.*;public class Test40014 {public static void main(String []args){Scanner in =new Scanner(System.in);int gcd, lcm, m, n,r;int repeat, ri;repeat=in.nextInt();for(ri = 1; ri <= repeat; ri++){m=in.nextInt();n=in.nextInt();if(m <= 0 || n <= 0)System.out.println("m <= 0 or n <= 0");else{/*---------*/System.out.println("the least common multiple:"+lcm+", the greatest common divisor:"+gcd);}}}}40021import java.util.Scanner;public class Test40021{public static void main(String args[]){int ri, repeat;int i,n;float s,t;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((int)(s*10000+0.5)/10000.); }}}40022import java.util.Scanner;public class Test40022{public static void main(String args[]){ int ri, repeat;int i, digit, m, n, number, sum;Scanner in=new Scanner(System.in); repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){m=in.nextInt();n=in.nextInt();/*------------------*/}}}40023import java.util.Scanner;public class Test40023{public static void main(String args[]){ int ri, repeat;int count, i, j, k, m, n, sum;Scanner in=new Scanner(System.in); repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){m=in.nextInt();n=in.nextInt();/*---------------------*/System.out.println("count="+count+", sum="+sum); }}}40031import java.util.Scanner;public class Test40031{public static void main(String []args ){int ri, repeat,count, word,i;String line;char c;Scanner in=new Scanner(System.in);repeat=(in.nextLine()).charAt(0)-'0'; //输入repeat for(ri=1; ri<=repeat; ri++){line=in.nextLine(); //输入一行字符/*---------*/System.out.println(count);}}}40032import java.util.Scanner;public class Test40032{public static void main(String []args ){ int ri, repeat;int digit;long n, temp, pow;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextLong();/*---------*/System.out.println();}}}40033import java.util.Scanner;public class Test40033{public static void main(String args[]) { int ri, repeat;int op1, op2, res;char operator;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){op1=in.nextInt();operator =(in.next()).charAt(0);/*---------*/System.out.println(res);}}}40034import java.util.Scanner;public class Test40034{public static void main(String []args){ int year,m,n,repeat,ri;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){m=in.nextInt();n=in.nextInt();/*---------*/}}}40035import java.util.Scanner;public class Test40035{public static void main(String []args){ int m,n,repeat,ri;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){n=in.nextInt();m=in.nextInt();/*---------*/}}}40036import java.util.Scanner;public class Test40036{public static void main(String []args){int days,repeat,ri;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){}}}40037import java.util.Scanner;public class Test40037{public static void main(String []args){int a,n,ri,count,number;double sum,ave;Scanner in=new Scanner(System.in);n=in.nextInt();for(ri=1;ri<=n;ri++){/。

浙大JAVA实验题答案answer

浙大J A V A实验题答案a n s w e rCKBOOD was revised in the early morning of December 17, 2020.实验8 Method的使用1.程序填空题，不要改变与输入输出有关的语句。

50001输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入1 个正整数n，计算 s 的前n项的和(保留 4 位小数)。

s = 1 + 1/2! +....+ 1/n!要求定义并调用函数fact(n)计算n的阶乘。

例：括号内是说明输入：2 (repeat=2)2 (n=2)10 (n=10)输出：1.51.7183import java.util.Scanner;public class Test50001 {public static void main(String[] args) {int ri,repeat;int i,n;double s;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){n=in.nextInt();/*-----------*/s=0;for(i=1;i<=n;i++)s+=1.0/fact(i);System.out.println((long)(s*10000+0.5)/10000.);}}/*---------------*/static double fact(int n) {int i;double f=1;for(i=1;i<=n;i++)f*=i;return f;}}50002输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入2个正整数a和n, 求a+aa+aaa+aa…a(n个a)之和。

要求定义并调用函数fn(a,n)，它的功能是返回aa…a(n个a)。

浙大JAVA-实验题答案08answerdoc资料

浙大J A V A-实验题答案08a n s w e r实验8 Method的使用1.程序填空题，不要改变与输入输出有关的语句。

50001 求1 + 1/2! +....+ 1/n!输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入1 个正整数n，计算 s 的前n项的和(保留 4 位小数)。

s = 1 + 1/2! +....+ 1/n!要求定义并调用函数fact(n)计算n的阶乘。

例：括号内是说明输入：2 (repeat=2)2 (n=2)10 (n=10)输出：1.51.7183import java.util.Scanner;public class Test50001 {public static void main(String[] args) {int ri,repeat;int i,n;double s;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){n=in.nextInt();/*-----------*/s=0;for(i=1;i<=n;i++)s+=1.0/fact(i);System.out.println((long)(s*10000+0.5)/10000.);}}/*---------------*/static double fact(int n) {int i;double f=1;for(i=1;i<=n;i++)f*=i;return f;}}50002 求a＋aa＋aaa＋aa…a输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入2个正整数a和n, 求a+aa+aaa+aa…a(n个a)之和。

要求定义并调用函数fn(a,n)，它的功能是返回aa…a(n个a)。

浙江大学java上机参考答案48页word文档

一、求两个数的和与差。

程序填空，不要改变与输入输出有关的语句。

输入整数a和b，计算并输出a、b的和与差。

import java.io.*;import java.util.Scanner;public class Test20001{public static void main(String args[]){int a, b, sum, diff;Scanner in=new Scanner(System.in);a=in.nextInt();b=in.nextInt();sum=a+b;diff=a-b;System.out.println("The sum is "+sum);System.out.println("The difference is "+diff);二、求平方根。

程序填空，不要改变与输入输出有关的语句。

输入1个实数x，计算并输出其平方根。

例：输入1.21输出The square root of 1.21 is 1.1import java.io.*;import java.util.Scanner;public class Test20002{public static void main(String args[]){double x, root;Scanner in=new Scanner(System.in);x=in.nextDouble();r oot=Math.sqrt(x);System.out.println("The square root of "+x+" is "+root);三、华氏温度转换为摄氏温度。

程序填空，不要改变与输入输出有关的语句。

输入华氏温度f，计算并输出相应的摄氏温度c。

c = 5/9(f-32).例：括号内是说明:输入17.2 (华氏温度)输出The temprature is -8.222222222222223 import java.util.Scanner;public class Test20003 {public static void main(String[] args) {Scanner in=new Scanner(System.in);double f, c;f=in.nextDouble();c=5.0/9*(f-32);System.out.println("The temprature is "+c);四、计算旅途时间。

浙大JAVA 实验题答案11answer

实验11 数组作为方法的参数1.程序填空题，不要改变与输入输出有关的语句。

60030 编写排序函数(方法)输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入一个正整数n，再输入n个整数，将它们从小到大排序后输出。

要求将排序编写为一个sort()方法。

例：括号内是说明输入3 (repeat=3)4 5 1 7 63 1 2 35 5 4 3 2 1输出1 5 6 71 2 31 2 3 4 5import java.util.Scanner;public class Test60030{public static void main(String []args){int ri, repeat;int i, n, a[];Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();a=new int[n];for(i=0; i<n; i++)a[i]=in.nextInt();sort(a);for(i=0; i<n; i++)System.out.print(a[i]+" ");System.out.println();}}/*---------*///说明：数组作参数时，传递的是地址，形参数组和实参数组共用同一块内存，//方法sort()中对形参数组b排序，实际上就是对实参数组a排序，//所以不需要返回值。

static void sort(int b[]){int i,j,k,temp;for(i=0;i<b.length-1;i++) { //选择法递增排序k=i;for(j=i+1;j<b.length;j++)if(b[k]>b[j]) k=j;if(i!=k){temp=b[i];b[i]=b[k]; b[k]=temp;}}}}60031 判断两个矩阵是否相同(方法)输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：读入 1 个正整数n(1≤n≤6), 再读入2个 n 阶方阵 a和b , 判断2个方阵是否相同。

浙大java练习题答案-40001-50004

40001import java.util.Scanner;public class Test40001 {public static void main(String[] args) {int ri, repeat;int i, n;float sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((int)(sum*1000+0.5)/1000.);}}}40002import java.util.Scanner;public class Test40002 {public static void main(String[] args) { int ri, repeat;int i, n;double fact;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println(fact);}}}40003import java.util.Scanner;public class Test40003 {public static void main(String[] args) { int ri, repeat;int i, n;double x, mypow;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){x=in.nextDouble();n=in.nextInt();/*--------------------*/System.out.println(mypow);}}}40004import java.util.Scanner;public class Test40004 {public static void main(String[] args) {int ri, repeat;int i, n, flag;float sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((long)(sum*10000+0.5)/10000.);}}}40005import java.util.Scanner;public class Test40005 {public static void main(String[] args) {int ri, repeat;int i, n, temp;float sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/sum=0;for(i=1;i<=n;i++){sum=(float) (sum+1.0/(2*i-1));}System.out.println(sum);}}}40006import java.util.Scanner;public class Test40006 {public static void main(String[] args) { int ri, repeat;int temp, flag;double eps, item, sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){eps=in.nextDouble();/*--------------------*/System.out.println((int)(sum*10000+0.5)/10000.);}}}40007import java.util.Scanner;public class Test40007 {public static void main(String[] args){int ri, repeat;int begin, c, end, f;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){begin=in.nextInt();end=in.nextInt();System.out.println("Celsius Fahrenheit");/*--------------------*/System.out.println(c+" "+f);}}}}40008import java.util.Scanner;public class Test40008 {public static void main(String[] args){ int ri, repeat;int x, sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){x=in.nextInt();/*--------------------*/}System.out.println(sum);}}}40009import java.util.Scanner;public class Test40009 {public static void main(String[] args){ int ri, repeat;int i , max, n, x;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/}System.out.println(max);}}}40010import java.util.Scanner;public class Test40010 {public static void main(String[] args){ int ri, repeat;int number, sum,n,r;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println("number="+number+", sum="+sum); }}}40011import java.util.Scanner;public class Test40011 {public static void main(String[] args) {int ri, repeat;int i,n;float a,b,s,t;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((int)(s*10000+.5)/10000.); }}}40012import java.util.Scanner;public class Test40012{public static void main(String args[]){int ri, repeat;int i, n, a, sn, tn;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){a=in.nextInt();n=in.nextInt();/*--------------------*/System.out.println(sn);}}}40013import java.util.Scanner;public class Test40013{public static void main(String args[]){ int ri, repeat;int i, m, n;boolean flag=true;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){m=in.nextInt();/*--------------------*/}if(flag) System.out.println("YES");else System.out.println("NO");}}}40014import java.util.*;public class Test40014 {public static void main(String []args){ Scanner in =new Scanner(System.in);int gcd, lcm, m, n,r;int repeat, ri;repeat=in.nextInt();for(ri = 1; ri <= repeat; ri++){m=in.nextInt();n=in.nextInt();if(m <= 0 || n <= 0)System.out.println("m <= 0 or n <= 0");else{/*---------*/System.out.println("the least common multiple:"+lcm+", the greatest common divisor:"+gcd);}}}}40021import java.util.Scanner;public class Test40021{public static void main(String args[]){int ri, repeat;int i,n;float s,t;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/System.out.println((int)(s*10000+0.5)/10000.); }}}40022import java.util.Scanner;public class Test40022{public static void main(String args[]){int ri, repeat;int i, digit, m, n, number, sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){m=in.nextInt();n=in.nextInt();/*------------------*/}}}40023import java.util.Scanner;public class Test40023{public static void main(String args[]){int ri, repeat;int count, i, j, k, m, n, sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){m=in.nextInt();n=in.nextInt();/*---------------------*/System.out.println("count="+count+", sum="+sum); }}}40031import java.util.Scanner;public class Test40031{public static void main(String []args ){int ri, repeat,count, word,i;String line;char c;Scanner in=new Scanner(System.in);repeat=(in.nextLine()).charAt(0)-'0'; //输入repeat for(ri=1; ri<=repeat; ri++){line=in.nextLine(); //输入一行字符/*---------*/System.out.println(count);}}}40032import java.util.Scanner;public class Test40032{public static void main(String []args ){int ri, repeat;int digit;long n, temp, pow;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextLong();/*---------*/System.out.println();}}}40033import java.util.Scanner;public class Test40033{public static void main(String args[]) { int ri, repeat;int op1, op2, res;char operator;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){op1=in.nextInt();operator =(in.next()).charAt(0);/*---------*/System.out.println(res);}}}40034import java.util.Scanner;public class Test40034{public static void main(String []args){ int year,m,n,repeat,ri;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){m=in.nextInt();n=in.nextInt();/*---------*/}}}40035import java.util.Scanner;public class Test40035{public static void main(String []args){ int m,n,repeat,ri;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){n=in.nextInt();m=in.nextInt();/*---------*/}}}40036import java.util.Scanner;public class Test40036{public static void main(String []args){ int days,repeat,ri;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1;ri<=repeat;ri++){}}}40037import java.util.Scanner;public class Test40037{public static void main(String []args){int a,n,ri,count,number;double sum,ave;Scanner in=new Scanner(System.in);n=in.nextInt();for(ri=1;ri<=n;ri++){/。

浙大《Java语言程序设计》编程答案4

实验5分支结构程序的设计程序填空，不要改变与输入输出有关的语句。

一、显示两级成绩输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入一个学生的数学成绩，如果它低于60，输出“Fail”，否则，输出“Pass”。

输出使用"Pass");及"Fail");例：括号内是说明输入2 (repeat=2)60 59输出PassFailimport ;public class Test30001{public static void main(String[] args){int ri, repeat;int mark;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){mark=in.nextInt();/*------------------*/if (mark<60)"Fail");else"Pass");}}}二、找最小值输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入四个整数，输出其中的最小值。

例：括号内是说明输入3 (repeat=3)12 6 1 9010 40 30 20-1 -3 -4 -5输出min is 1 (12 6 1 90 中的最小值是1)min is 10 (10 40 30 20 中的最小值是10)min is -5 (-1 -3 -4 -5中的最小值是-5)import ;public class Test30002 {public static void main(String[] args){int ri, repeat;int a, b, c, d, min;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){a=in.nextInt();b=in.nextInt();c=in.nextInt();d=in.nextInt();/*------------------*/min=a;if(min>b) min=b;if(min>c) min=c;if(min>d) min=d;"min is "+min);}}}三、求三角形的面积和周长输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：输入三角形的三条边a, b, c，如果能构成一个三角形，输出面积area和周长perimeter；否则，输出“These sides do not correspond to a valid triangle”。

浙大 Java语言程序设计编程答案5

实验6 循环结构程序的设计(一)程序填空，不要改变与输入输出有关的语句。

1. 求1＋1/2＋1/3＋……＋1/n输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：读入1 个正整数 n(n<=100)，计算并输出1＋1/2＋1/3＋……＋1/n 。

例：括号内是说明输入2 (repeat=1)210输出1.52.9289684import java.util.Scanner;public class Test40001 {public static void main(String[] args) {int ri, repeat;int i, n;float sum;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/sum=0;//注意这条赋初值语句的位置for(i=1;i<=n;i++){sum+=1.0f/i;}System.out.println((int)(sum*1000+0.5)/1000.);}}}2. 求n!输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：读入1 个正整数 n(n<=50)，计算并输出n! 。

例：括号内是说明输入3 (repeat=2)1105输出1.03628800.0120.0import java.util.Scanner;public class Test40002 {public static void main(String[] args) {int ri, repeat;int i, n;double fact;Scanner in=new Scanner(System.in);repeat=in.nextInt();for(ri=1; ri<=repeat; ri++){n=in.nextInt();/*--------------------*/fact=1;for(i=1;i<=n;i++)fact*=i;System.out.println(fact);}}}3. 求x的n次幂输入一个正整数repeat (0<repeat<10)，做repeat次下列运算：读入1 个正实数x和1个正整数 n(n<=50)，计算并输出x的n次幂。