testsort.java

来自「一些Java写的测试API的源代码」· Java 代码 · 共 44 行

/**
 *Author Miracle
 *Time 2005.12.4 19:40
 *
 */

/**  implements Comparator   **/ 

/**  implement the sort(Num,String) by implementing the Comparator interface **/

import java.util.*;

public class TestSort 
{
	public static void main(String[] args)
	{
		List l = Arrays.asList(args);
		Collections.sort(l,new YourComparator());
		System.out.println(l);
	}
}

/**   sort the Number **/
class MyComparator implements Comparator
{
	public int compare(Object o1,Object o2)
	{
		int s1 = Integer.parseInt(o1.toString());
		int s2 = Integer.parseInt(o2.toString());
		return  s1 > s2?1:(s1==s2?0:-1);

	}
}

/** sort the String by theFirst char **/
class YourComparator implements Comparator
{
	public int compare(Object o1,Object o2)
	{
		String s1 = o1.toString();
		String s2 = o2.toString();
		return s1.charAt(0) > s2.charAt(0)?1:(s1.charAt(0)==s2.charAt(0)?0:-1);
	}
}