32. Program for concatenate of two string

import java.io.*;

class concatenate

{

            public static void main(String args[])

            {

                        try

                        {

                                    InputStreamReader ir=new InputStreamReader(System.in);

                                    BufferedReader in=new BufferedReader(ir);

                                    System.out.println("Enter string 1:");

                                    String s1=in.readLine();

                                    System.out.println("Enter string 2:");

                                    String s2=in.readLine();

                                    String s3=s1+s2;    //first method of concatenate

                                    System.out.println("Result 1:"+s3);

                                    String s4=s1.concat(s3);  //second method

                                    System.out.println("Result 2:"+s4);

                                    System.out.println(s1.trim());

                        }

                        catch(Exception e)

                        {

                                    System.out.println("Exception:"+e);

                        }

            }

}