java学习第14天

package myproject;
import java.util.ArrayList;
public class jihe3 {
public static void main(String[] args) {
ArrayList<String>arr1=new ArrayList<>();
arr1.add(" 热 人");
arr1.add(" 鞥和我");
arr1.add("给嗯");
arr1.add(" 恩杰");
arr1.add(" 默认");
for(int i=0;i<arr1.size();i++) {
String s=arr1.get(i);
System.out.println(s);
}
}
}

package myproject;

public class Studet {
private int age;
private String name;
private String no;
private String address;
public Studet() {}
public Studet(int age,String name,String no,String address) {
this.name=name;
this.age=age;
this.address=address;
this.no=no;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age=age;
}
public void setName(String name) {
this.name=name;
}
public String getName() {
return name;
}
public void setNo(String no) {
this.no=no;
}
public String getNo() {
return no;
}
public void setAddress(String address) {
this.address=address;
}
public String getAddress() {
return address;
}
}

package myproject;
import java.util.Scanner;
import java.util.ArrayList;
public class jihe5 {
public static void main(String[] args) {

ArrayList<Studet>arr1=new ArrayList<>();
//调用方法，添加学生信息
arr1Add(arr1);
arr1Add(arr1);
arr1Add(arr1);
//输出显示学生信息
for(int i=0;i<arr1.size();i++) {
Studet s=arr1.get(i);
System.out.println(s.getName()+","+s.getAge());
}

}
//定义一个方法用于添加学生信息
public static void arr1Add(ArrayList<Studet>arr) {
//键盘输入数据
Scanner sc=new Scanner(System.in);
System.out.println("请输入学生姓名:");
String name=sc.nextLine();
System.out.println("请输入学生年龄:");
int age=sc.nextInt();
//创建学生对象
Studet s=new Studet();
s.setName(name);
s.setAge(age);
arr.add(s);
}

}