public class Student {
private String name;
private int age;
public Student() {
super();
}
public Student(String name, int age){
super();
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
===========================================
public class Dome1 {
public static void main(String[] args) {
Collection c = new ArrayList();
Student s = new Student("张三",19);
Student s1 = new Student("李四",29);
c.add(s);
c.add(s1);
c.add(new Student("王五",18));
c.add(new Student("赵六",28));
//遍历方式1
Object[] obj = c.toArray();
for(int x=0;x<obj.length;x++){
Student stu = (Student) obj[x];
System.out.println(stu.getName()+":"+stu.getAge());
}
//便利方式2
Iterator it = c.iterator();
while(it.hasNext()){
Student stu = (Student) it.next();
System.out.println(stu.getName()+":"+stu.getAge());
}
//便利方式3
// Student[] stu = (Student[]) c.toArray();
for(Object st :obj){
System.out.println(((Student) st).getName()+":"+((Student) st).getAge());
}
}
}
