An instance of Java that is sorted by a field of an object stored in the list _java

key point: implement the comparable class for the object stored in the list and rewrite its CompareTo () method

Bean:

Package CHC;
public class Stuvo implements comparable<stuvo>{
	private String ID;
	private String name;
	Private Integer age;
	Public Stuvo (string ID, string name, Integer age) {
		this.id=id;
		This.name=name;
		this.age=age;
	}
	public int CompareTo (Stuvo stu) {return
		This.name.compareTo (Stu.getname ());
	}
	Public String GetId () {return
		ID;
	}
	public void SetId (String id) {
		this.id = ID;
	}
	Public String GetName () {return
		name;
	}
	public void SetName (String name) {
		this.name = name;
	}
	Public Integer Getage () {return age
		;
	}
	public void Setage (Integer age) {
		this.age = age;
	}
}

Demo:

Package CHC;

Import java.util.ArrayList;
Import java.util.Collections;
Import Java.util.Iterator;
Import java.util.List;

public class Arraylistsortdemo {public
	static void Main (string[] args) {
		list<stuvo> stulist=new Arraylist<stuvo> ();
		Stuvo stu=new Stuvo ("1", "H xiaoming", one);
		Stulist.add (Stu);
		
		Stu=new Stuvo ("2", "D-Bear",);
		Stulist.add (Stu);
		
		Stu=new Stuvo ("3", "A John", ten);
		Stulist.add (Stu);
		
		Stu=new Stuvo ("4", "B Dick");
		Stulist.add (Stu);
	
		Collections.sort (stulist);
		
		Iterator<stuvo> it =stulist.iterator ();
		while (It.hasnext ()) {
			System.out.println (It.next (). GetName ());}}}

Above this Java according to the list of objects stored in a field to sort the example is the small series to share all the content of everyone, hope to give you a reference, but also hope that we support cloud habitat community.