三角形白盒测试

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一.三角形问题:

1.import java.util.Scanner;

2. public class test

3.{

4. public static void main(String[] args)

5. {

6. Scanner input=new Scanner(System.in);

7. System.out.print("Enter 3 integers which are sides of a triangle:");

8. double a=input.nextDouble();

9. double b=input.nextDouble();

10. double c=input.nextDouble();

11 int sign1=0,sign2=0;

12 if(a>0&&b>0&&c>0&&a<200&&b<200&&c<200)

{

13 if(a+b>c&&a+c>b&&b+c>a)

{

14 if(a==b&&a==c) //F11

15. System.out.print("是等边三角形");

16. else

{

17 if(a==b||b==c||a==c) //14

18 sign1=1;

19 if(a*a+b*b==c*c||a*a==b*b+c*c||b*b==c*c+a*a) //17

20 sign2=1;

21 if(sign1==1&&sign2==1)

22 System.out.print("是等腰直角三角形");

23 else if(sign1==0&&sign2==1)

24 System.out.print("是直角三角形");

25 else if(sign1==1&&sign2==0)

26 System.out.print("是等腰三角形");

27 else System.out.print("是一般三角形");

}

}

28 else System.out.print("not a Triangle");

}

29 else System.out.print("input is error!");

}

30.}

1.语句覆盖:

条件

1:a>0 2:b>0 3:c>0

4: a< 200 5: b<200 6:c<200

7:a+b>c 8:a+c>b 9:b+c>a

10:a=b 11:a=c 12:a=b

13:b=c 14:a=c 15: a*a+b*b==c*c 16:a*a==b*b+c*c 17:b*b==c*c+a*a 18: sign1=1 19:sign2=1 20:sign1=0 21:sign2=1

22:sign1=1 23:sign2=0

2.判定覆盖:

3.条件覆盖:

4.路径覆盖:

5.条件判定覆盖:

6.条件组合覆盖:数据流测试

基路径:

ABD

ABCF

ABCEH ABCEIJKLMN ABCEIJKLMOP ABCEIJKLMOQR ABCEIJKLMOQS

圈复杂度:6+1=7

下一天问题:

package z;

import java.util.Scanner;

import javax.swing.JOptionPane;

public class NextDate

{

public static void main(String[] args)

{

int tomDay ,tomMonth ,tomYear ;

int day,month,year;

System.out.println("Enter today's date in the form MM DD YYYY");

Scanner input=new Scanner(System.in);

1 month=input.nextInt();

2 day=input.nextInt();

3 year=input.nextInt();

4 if(day<1||day>31||month<1||month>12||year<1812||year>2012)

{

5 System.out.println("输入错误");

}

6 else

{

7 switch(month)

{

8 case 1:

9 case 3:

10 case 5:

11 case 7:

12 case 8:

13 case 10:

14 if(day<31)

{

15 tomDay=day+1;

16 tomMonth=month;

17 tomYear=year;

18 System.out.println(month+":"+day+":"+year+"的下一天是

"+tomMonth+":"+tomDay+":"+tomYear);

}

19 else

{

20 tomDay=1;

21 tomMonth=month+1;

22 tomYear=year;

23 System.out.println(month+":"+day+":"+year+"的下一天是

"+tomMonth+":"+tomDay+":"+tomYear);

}

24 break;

25 case 4:

26 case 6:

27 case 9:

28 case 11:

29 if(day<30)

{

30 tomDay=day+1;

31 tomMonth=month;

32 tomYear=year;

33 System.out.println(month+":"+day+":"+year+"的下一天是

"+tomMonth+":"+tomDay+":"+tomYear);

}

34 else if(day==30)

{

35 tomDay=1;

36 tomMonth=month+1;

37 tomYear=year;

38 System.out.println(month+":"+day+":"+year+"的下一天是

"+tomMonth+":"+tomDay+":"+tomYear);

}

39 else

{

40 System.out.println("输入错误");

}

41 break;

42 case 12:

43 if(day<31)

{

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