面试题

package com.suypower.examTest;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;

public class ExamTesTwo {

	/**
	 * @author chengYu
	 * @param  exam test No2
	 */
	public static void main(String[] args) throws Exception
	{
		String path= "C:\\Documents and Settings\\maomaoyu\\桌面\\测试题2\\文本.TXT";
		File file = new File(path);
		if(file.exists())
		{
//			读取文本文件
			InputStream is = new FileInputStream(path);
			InputStreamReader isr = new InputStreamReader(is);
			BufferedReader br = new BufferedReader(isr);
//			BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(path)));
//			查找重复总行数
			ArrayList list = new ArrayList();
			HashSet set = new HashSet();
			Map<Integer,String> map = new HashMap<Integer, String>();
			String line = "";
			String str = "";
			int number = 0;
			while((line = br.readLine()) != null)
			{
				++number;
				str = line;
				map.put(new Integer(number),str); // 行号 、 内容
//				System.out.println(number + ":" +str);
				list.add(str);
				set.add(str);
			}
			System.out.println("一共"+list.size()+"行。"+"重复的有"+(list.size()-set.size())+"行");

//			实现重复行的行号 和值
			ArrayList result = new ArrayList();
			String[] array = (String[])list.toArray(new String[list.size()]);
			for(int i=0;i<array.length;i++)
			{
				for(int j=0;j<array.length;j++)
				{
					if(array[i].equals(array[j]))
					{
						result.add(j+1);
					}
				}
				if(result.size()>2)
				{
					System.out.println("重复的行和内容：");
					for(int k=0;k<result.size();k++)
					{
						System.out.println("行数："+result.get(k)+"\n"+"内容："+map.get(result.get(k)));
					}
				}
				result.clear();
			}

		}else
		{
			System.out.println("path is error ");
		}
	}
}