[Java] Implement a Program to Perform Various Operations on Text Files

Implement a program to accomplish the following task:

• Create a text file and store data in it.
• Count number of lines and words in the file.
• Copy contents of one file to another file.

import java.io.*;

class Copycon

{

int count1,count,len;

void getdata()

{

try

{

RandomAccessFile ff=new RandomAccessFile ("student.dat","rw");

BufferedReader in=new BufferedReader(new InputStreamReader(System.in));

String choice=new String();

String s="";

int countc=count1=len=0;

do{

countc++;

count1++;

System.out.print("Enter the String :");

s=in.readLine();

ff.writeUTF(s);

len=s.length();

s=s.trim();

for(int i=0;i<len;i++)

{

if(s.charAt(i)==' ')

countc++;

}

System.out.print("Insert next line(Y/N):");

choice=in.readLine();

}

while(choice.compareTo("Y")==0||choice.compareTo("y")==0);

System.out.println("Number of Lines:"+count1);

System.out.println("Number of words:"+countc);

}

catch(Exception e)

{   }

}

public static void main(String args[])

{

Copycon c=new Copycon();

c.getdata();

File inFile=new File("input.txt");

File outFile=new File("output.txt");

FileReader ins=null;

FileWriter outs=null;

try

{

ins=new FileReader(inFile);

outs=new FileWriter(outFile);

int ch;

while((ch=ins.read())!=-1);

{

outs.write(ch);

}

}

catch(Exception e)

{

System.out.println(e);

System.out.println(-1);

}

finally

{

try

{

ins.close();

outs.close();

}

catch(IOException e)

{}

}

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Pankaj Gaikar

Pankaj Gaikar is a professional blogger from Pune, India who writes on Technology, Android, Gadgets, social media and latest tech updates at Punk Tech , Being Android & Shake The Tech . Email me HERE