定义一个Employee类并排序（完整版本）

定义一个Employee类,属性:name:String,age:int,salary:double
<span style="white-space:pre">		</span>* 把若干Employee对象放在List中,
<span style="white-space:pre">		</span>* 排序并遍历输出,排序规则:salary高的在前面,salary相同时age大的在前面,age也相同时按照name升序排列

package testclass;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class TestClass {
private String name;
private int age;
private double salary;

public TestClass(){
super();
}

public TestClass(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 static void main(String[] args) {
// TODO Auto-generated method stub

/*
* 3.定义一个Employee类,属性:name:String,age:int,salary:double
* 把若干Employee对象放在List中,
* 排序并遍历输出,排序规则:salary高的在前面,salary相同时age大的在前面,age也相同时按照name升序排列
*/

// 录入员工

TestClass em1 = new TestClass("张三丰", 23, 4700.0);
TestClass em2 = new TestClass("李寻欢", 27, 5300.0);
TestClass em3 = new TestClass("王允", 28, 4700.0);
TestClass em4 = new TestClass("赵飞燕", 23, 4700.0);
TestClass em5 = new TestClass("令狐冲", 23, 5300.0);
TestClass em6 = new TestClass("上官海棠", 27, 6200.0);

// 添加到list

List<TestClass> list = new ArrayList<TestClass>();
list.add(em1);
list.add(em2);
list.add(em3);
list.add(em4);
list.add(em5);
list.add(em6);

//排序
int a = list.size();
System.out.println(a);
for(int j = 0;j<list.size();j++){
for(int i = 0;i<list.size()-1-j;i++){
TestClass emp1 = (TestClass)list.get(i);
TestClass emp2 = (TestClass)list.get(i+1);
if(emp1.getSalary()<emp2.getSalary()){
list.set(i, emp2);
list.set(i+1, emp1);
}else if(emp1.getSalary()==emp2.getSalary()){
if(emp1.getAge() < emp2.getAge()){
list.set(i, emp2);
list.set(i+1, emp1);
}
else if(emp1.getAge() == emp2.getAge()){
if(emp1.getName().compareTo(emp2.getName()) >0){
list.set(i, emp2);
list.set(i+1, emp1);
}
}
}
}

}

//遍历
Iterator it = list.iterator();

while(it.hasNext()){
TestClass emp = (TestClass)it.next();

System.out.print(emp.getName()+"\t");
System.out.print(emp.getAge()+"\t");
System.out.print(emp.getSalary()+"\t");
System.out.print("\n");
}

}
}