定义一个Person类{name,age,job},初始化Person对象数组,有三个person对象,并按照age从小到大进行排序,使用冒泡排序
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定义一个Person类{name,age,job},初始化Person对象数组,有三个person对象,并按照age从小到大进行排序,使用冒泡排序
public class DemoA {
public static void main(String[] args) {
Person person[] = new Person[3];
person[0] = new Person("张三", 19, "经理");
person[1] = new Person("李四", 18, "董事长");
person[2] = new Person("马六", 34, "职工");
//输出当前对象数组
for (int i = 0; i < person.length; i++) {
System.out.println(person[i]);
}
//使用冒泡排序
Person temp = null;// 临时变量,用于交换
for (int i = 0; i < person.length - 1; i++) {//外层循环
for (int j = 0; j < person.length - 1 - i; j++) {//内层循环
//并按照从小到大进行排序,如果前面的人的age>后面人的年龄,就交换
if (person[i].getAge()>person[i + 1].getAge()) {
temp = person[i];
person[i] = person[i + 1];
person[i + 1] = temp;
}
}
}System.out.println("排序后的效果");
for (int i = 0; i < person.length; i++) {
System.out.println(person[i]);//默认对象的toString
}
}
}
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 + '\'' +
'}';
}
}