本文實(shí)例講述了Java針對(duì)ArrayList自定義排序的2種實(shí)現(xiàn)方法。分享給大家供大家參考，具體如下：

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Java中實(shí)現(xiàn)對(duì)list的自定義排序主要通過兩種方式

1）讓需要進(jìn)行排序的對(duì)象的類實(shí)現(xiàn)Comparable接口，重寫compareTo(T o)方法，在其中定義排序規(guī)則，那么就可以直接調(diào)用Collections.sort()來排序?qū)ο髷?shù)組

public class Student implements Comparable{
  private int id;
  private int age;
  private int height;
  private String name;
  public Student(int id, String name, int age, int height) {
    this.id = id;
    this.name = name;
    this.age = age;
    this.height = height;
  }
  public int getId() {
    return id;
  }
  public int getAge() {
    return age;
  }
  public int getHeight() {
    return height;
  }
  public String getName() {
    return name;
  }
  public void setId(int id) {
    this.id = id;
  }
  public void setAge(int age) {
    this.age = age;
  }
  public void setName(String name) {
    this.name = name;
  }
  public void setHeight(int height) {
    this.height = height;
  }
  @Override
  public int compareTo(Object o) {
    Student s = (Student) o;
    if (this.age > s.age) {
      return 1;
    }
    else if (this.age < s.age) {
      return -1;
    }
    else {
      if (this.height >= s.height) {
        return 1;
      }
      else {
        return -1;
      }
    }
  }
}

分享名稱：Java針對(duì)ArrayList自定義排序的2種實(shí)現(xiàn)方法-創(chuàng)新互聯(lián)
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