Java - String Reverse

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Here is the Java Source code to reverse the given string.

 

Source Code

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import java.io.*;

 

 

class StringReverse {  

 

    public static void main(String[] args) {

 

            String inpstring = "";

            InputStreamReader input = new InputStreamReader(System.in);

            BufferedReader reader = new BufferedReader(input);

 

            try

            {

                  System.out.print("Enter a string to reverse:");

                  inpstring = reader.readLine();

 

                  int len = inpstring.length();

                  int lastindex = len - 1;

 

                  char[] outstring = inpstring.toCharArray();

 

                  int l = (len / 2);

 

                  if( (len % 2) == 1)

                        l++;

 

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

                  {

                        char ch = outstring[i];

                        outstring[i] = outstring[lastindex];

                        outstring[lastindex] = ch;

                        lastindex--;

                  }

 

                  System.out.print(inpstring + " => ");

                  for (int k = 0; k < outstring.length; k++)

                  {

                        System.out.print(outstring[k]);

                  }

                  System.out.println();

            }

            catch (Exception e)

            {

                  e.printStackTrace();

            }

    }

}

Output

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D:\Program Files\Java\jdk1.6.0_23\bin>Java StringReverse

Enter a string to reverse:Welcome to softwareandfinance.com

Welcome to softwareandfinance.com => moc.ecnanifdnaerawtfos ot emocleW

 

D:\Program Files\Java\jdk1.6.0_23\bin>Java StringReverse

Enter a string to reverse:Malayalam

Malayalam => malayalaM

 

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