主代码区:
import java.util.ArrayList;
public class HomeWork04 {
public static void main(String[] args) {
List list = new ArrayList();
list.add(new Worker("凤姐",18,20000));
list.add(new Worker("欧阳锋",60,8000));
list.add(new Worker("刘德华",40,30000));
list.add(1,new Worker("张柏芝",35,3300) );
System.out.println(list);
list.remove(3);
for (int i = 0; i < list.size(); i++) {
System.out.println(((Worker)list.get(i)).getName()+",年龄是:"+((Worker)list.get(i)).getAge()+
",工资是:"+((Worker)list.get(i)).getSalary()+".");
}
Iterator it = list.iterator();
while (it.hasNext()) {
((Worker)(it.next())).work();
}
}
}
Worker类 代码区:
public class Worker {
private String name;
private int age;
private double salary;
public Worker() {
super();
// TODO Auto-generated constructor stub
}
public Worker(String name, int age, double salary) {
super();
this.name = name;
this.age = age;
this.salary = salary;
}
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 double getSalary() {
return salary;
}
public void setSalary(double salary) {
this.salary = salary;
}
public void work() {
System.out.println(name+"正在工作");
}
@Override
public String toString() {
return "Worker [name=" + name + ", age=" + age + ", salary=" + salary
+ "]";
}