Java每日一练第一题

1.定义一个Person类name age job,初始化Person对象数组，有3个person对象，并按照age从小到大进行排序，提示，使用冒泡排序

package com.java.Homework_;
public class Homework01 {
public static void main(String[] args) {
Person[] ps = new Person[3];
ps[0]=new Person("jack",21,"程序员");
ps[1]=new Person("smith",32,"java程序员");
ps[2]=new Person("tom",5,"python程序员");
for (int i = 0; i <ps.length ; i++) {
System.out.println(ps[i]);
}
//使用冒泡排序
Person temp=null;
for (int i = 0; i <ps.length-1 ; i++) {
for (int j = 0; j <ps.length-1-i ; j++) {
if(ps[i].getAge()<ps[i+1].getAge()){
temp=ps[i];
ps[i]=ps[i+1];
ps[i+1]=temp;
}
}
}
System.out.println("==============排序后效果=========");
for (int i = 0; i <ps.length ; i++) {
System.out.println(ps[i]);
}
}
}
class Person{
private String name;
private int age;
private
String job;
public Person(String name, int age, String job) {
this.name = name;
this.age = age;
this.job = job;
}
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 String getJob() {
return job;
}
public void setJob(String job) {
this.job = job;
}
@Override
public String toString() {
return "Person{" +
"name='" + name + ''' +
", age=" + age +
", job='" + job + ''' +
'}';
}
}

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