java_3

class Student{ private String name; private String sex; private int age; public String getName() { return name; } public void setName(String name) { = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }
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/*ArrayList 实现 */ ArrayList<Student> arrList = new ArrayList<Student>(); //增加 Student 到 ArrayList 中 for (int i = 0; i < 10; i++) { arrList.add(new Student()); } //修改 age 值加1 for (int i = 0; i < arrList.size(); i++) { Student perStudent = atAge(perStudent.getAge() + 1); } //10个 Student 对象的详细信息逐行打印出来(
//修改 age 值加1 for (int i = 0; i < arr.length; i++) { arr[i].setAge(arr[i].getAge() + 1); }
//10个 Student 对象的详细信息逐行打印出来( for (int i = 0; i < arr.length; i++) { System.out.println(arr[i].getName()); System.out.println(arr[i].getSex()); System.out.println(arr[i].getAge()); }
for (int i = 0; i < arrList.size(); i++) { Student perStudent = arrList.get(i); System.out.println(perStudent.getName()); System.out.println(perStudent.getSex()); System.out.println(perStudent.getAge()); } } }
计算机 JAVA 作业
定义10个长度的 Student 数组，将10个 Student 对象的年龄全部加1，然后把10个 Student 对象的详细信息逐行打印出来(数组和 ArrayList 实现)。
import java.util.ArrayList;
public class Test {
public static void main(String[] args) { /*数组实现 */ Student[] arr = new Student[10]; //增加 Student 到 ArrayList 中 for (int i = 0; i < arr.length; i++) { arr[i] = new Student(); }