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Java实现根据属性排序输出对象

package com.wms;import java.util.Arrays;public class DogAgeSort {  public static void main(String[] args) {    Dog[] dogs = {new Dog("小黄",2), new Dog("小绿",1), new Dog("小黑",3) , new Dog("小红",6)};    Arrays.sort(dogs, new DogComparator());        for(Dog dog: dogs){      System.out.println(dog);    }      }}

package com.wms;public class Dog {  private String name;  private int age;      public Dog() {}  public Dog(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;  }  @Override  public String toString() {    return "Dog [name=" + name + ", age=" + age + "]";  }  }

package com.wms;import java.util.Comparator;public class DogComparator implements Comparator<Dog>{  public int compare(Dog o1, Dog o2) {    if(o1.getAge()<o2.getAge()){      return -1;    }else if(o1.getAge()>o2.getAge()){      return 1;    }else{      return 0;    }  }}

 




原标题:Java实现根据属性排序输出对象

关键词:JAVA

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