java 实现文件简单比较

来源：互联网发布：ue4和unity3d 编辑：程序博客网时间：2024/06/01 08:50

将欲比较的文件命名为hello1.txt和 hello2.txt或将代码中的hello1.txt 和 hello2.txt改为自己的文件名

import java.io.*;
class FilesCompare
{
public static void main(String[] args)
{
  File f1=new File("hello1.txt");
  File f2=new File("hello2.txt");
  try{

  FileReader in11=new FileReader(f1);
  FileReader in22=new FileReader(f2);
                BufferedReader in1=new BufferedReader(in11);
                BufferedReader in2=new BufferedReader(in22);
  int n1=0,n2=0;
         int line=1;
                n2=in2.read();
                n1=in1.read();
                int max=(n1>n2?n1:n2);
                while (max>-1)
                {
                  line++;
                  String s1,s2;
                  s1=in1.readLine();
                  s2=in2.readLine();
                  if(!s1.equals(s2))
            {
                     System.out.println("line:"+line);
                     System.out.println("hello1:"+s1);
                     System.out.println("hello2:"+s2);
                   }
                 }
        in22.close();
                in11.close();
  in2.close();
  in1.close();
  }// end of try
  catch (IOException e)
  {
   System.out.println(e);

  }//end of catch

}//end of main()
}//end of filecompare