Write a program that uses a scanner object to read two strings from the user’s keyboard. display each string, along with its width, on two separate lines. then create a new string by joining the two strings with a space between them. display the new string and its length on a new separate line.

// here is code in java.

import java.util.*;

class Main

{

public static void main (String[] args) throws java.lang.Exception

{

   try{

       // create 3 string variables

       String st1,st2,st3;

 // scanner object to read input      

Scanner scr=new Scanner(System.in);

System.out.print("enter the first string:");

 // read first string

st1=scr.nextLine();

System.out.print("enter the second string:");

 // read second string

st2=scr.nextLine();

 // print 1st string and its length

System.out.println(st1+" "+st1.length());

 // print 2nd string and its length

System.out.println(st2+" "+st2.length());

 // create 3rd string by joining two string with a space between

st3=st1+" "+st2;

  print 3rd string and its length

System.out.println(st3+" "+st3.length());

   }catch(Exception ex){

       return;}

}

}

Explanation:

Create three string variables.Read the 1st string and assign it to variable "st1" , read 2nd string and assign it to variable "st2".Find the length of 1st and 2nd  string and then print "st1" & its length.Similarly do it for 2nd string, print  "st2" and its length in a line. Join the first two string with a space in between them. find its length and print the "st3" and its length in a line.

Output:

enter the first string:                                                                                                                                      

hello                                                                                                                                                        

enter the second string:                                                                                                                                      

alex

hello 5                                                                                                                                                      

alex 4                                                                                                                                                        

hello alex 10