JAVA学习笔记---类对象排序-优快云博客

本文介绍如何使用自定义的Comparable接口实现数组元素的排序，并通过MyText类展示了具体实现过程。其中包括创建比较器、实现compareTo方法、定义数组元素类及排序演示。

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package MyText2;
class Arrays
{
	public static void sort(Object object[])
	{
		for(int i = 0; i < object.length - 1; i ++)
		{
			for(int j = i; j < object.length; j ++)
			{
				if(((Comparable)object[i]).compareTo(object[j]) > 0)
				{
					Object temp = object[i];
					object[i] = object[j];
					object[j] = temp;
				}
			}
		}
	}
}
public class MyText implements Comparable <Object>  //创建比较器Comparable.
{
	
	public int id;
	public String name;
	public MyText(int id, String name) //构造函数，对类对象成员进行赋值操作。
	{
		this.id = id;
		this.name = name;
	}
	public int compareTo(Object object)
	{
		int result = id > ((MyText)object).id ? 1 : (id == ((MyText)object).id ? 0 : -1);
		return result;
	}
	public static void main (String []args)
	{
		MyText array[] = new MyText[4];
		array[0] = new MyText(1, "zhang");
		array[1] = new MyText(4, "guan");
		array[2] = new MyText(3, "li");
		array[3] = new MyText(2, "dai");
		for(int i = 0; i < array.length; i++)
		{
			System.out.println(array[i].id + "  " + array[i].name);
		}
		Arrays.sort(array);
		for(int i = 0; i < array.length; i++)
		{
			System.out.println(array[i].id + "  " + array[i].name);
		}
	}
}