sortdemo.java

java2应用开发指南第一版

//SortDemo.java
import java.util.*;

public class SortDemo
{
	//实现Comparator接口的静态类
	static class Comp implements Comparator{
		public int compare( Object obj1, Object obj2){
			String s1=obj1.toString().toLowerCase();
			String s2=obj2.toString().toLowerCase();
			return s1.compareTo(s2);
		}
	}
	//程序的入口方法
	public static void main( String[] args )
	{
		String strMonths[]={
			"One","Two","three",
			"Four","five","Six",
			"Sevent","eight","Night",
			"Ten","eleven","Twelve"
		};
		//利用Arrays类进行排序
		Arrays.sort(strMonths);
		//get count of months
		int nMonthLen= strMonths.length;
		//按照字母顺序进行排序
		for( int i=0; i< nMonthLen; i++ ){
			System.out.print(strMonths[i] + "  ");
		}
		//空行
		System.out.println();
		//用比较器进行构造
		Arrays.sort(strMonths,new Comp());
		for( int i=0; i< nMonthLen; i++ ){
			System.out.print(strMonths[i] + "  ");
		}
	}
}