Question

Write a program that will read a line of text as input and then display the line with the first work moved to the end of the line. For example I love Java

Answer 1

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class HelloWorld {

// takine file name
   private static final String fname = "text.txt";

   public static void main(String[] args) {

       BufferedReader br = null;
       FileReader fr = null;

       try {
      
           fr = new FileReader(fname);
           br = new BufferedReader(fr);

           String line;

// TO READ FILE
           br = new BufferedReader(new FileReader(fname));

// reading the first line
           if ((line = br.readLine()) != null) {
               System.out.println(line);
               int found = line.indexOf(' '); // taking the index of first space
               System.out.println(line.substring(found+1)+" "+line.substring(0,found)); // printing output
           }

       } catch (IOException e) {

           e.printStackTrace();

       } finally {

           try {
               // closing
               if (br != null)
                   br.close();

               if (fr != null)
                   fr.close();

           } catch (IOException ex) {

               ex.printStackTrace();

           }

       }

   }

}
/*Sample input text.txt has
"I love java"

Sample output after putting first word to last
"love java I"
*/