集合练习2-自定义对象加入集合并遍历

自定义对象类：Student

public class Student {
??????????
    private String name;
    private int age;

    public Student(){

    }

    public Student(String name,int age){
        this.name = name;
        this.age = age;
    }

    public void setName(String name){
        this.name = name;

    }
    public String getName(){
        return this.name;
    }

    public void setAge(int age){
        this.age = age;

    }
    public int getAge(){
        return this.age;
    }
}

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import java.util.ArrayList;

public class Demo {
    public static void main(String[] args) {
        //创建Student类型的集合对象ab
        ArrayList<Student> ab = new ArrayList<Student>();
        //创建Student对象
        Student s1 = new Student("Ven",100);
        Student s2 = new Student("Bob",66);
        Student s3 = new Student("Mary",33);

        //将Student对象追加到集合容器对象ab中
        ab.add(s1);
        ab.add(s3);
        ab.add(s2);
????????//遍历集合对象ab,并输出对象属性值
        for(int i=0;i<ab.size();i++){
            Student s = ab.get(i);
            System.out.println(s.getName()+","+s.getAge());
        }
    }
}