第三周作业归并排序

来源：互联网发布：导出 excel js 插件编辑：程序博客网时间：2024/05/16 15:21
<img alt="" src="http://img.blog.csdn.net/20140326235338187?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdTAxMzk5NjQ2NA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" /><img alt="" src="http://img.blog.csdn.net/20140326235338187?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdTAxMzk5NjQ2NA==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" />import java.util.ArrayList;import java.util.List;import java.io.BufferedReader;import java.io.Reader;import java.io.File;import java.io.FileReader;import java.util.Collections;public class Test {public static void main(String[] args){Test2 test=new Test2();test.order("D:\\largeW.txt");}}class Test2{Test2(){}void order(String PathName){long sum=0;List<Integer> list=new ArrayList<Integer>();try{    File file=new File(PathName);     BufferedReader bufferedReader=new BufferedReader(new FileReader(file));    String s=null;     while((s=bufferedReader.readLine())!=null){    list.add(Integer.parseInt(s.trim()));    sum++;    }    Collections.sort(list);        }catch(Exception e){System.err.println("读取文件的时候,发生错误!"+e.toString());}System.err.println("读取文件完毕~~~~总条数:"+sum);for(int s:list){System.out.print(" "+s);}}}
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