import java.util.Scanner; public class ConcatString{ public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println("Enter a string1 : "); String str1 = scan.nextLine(); System.out.println("Enter a string2 : "); String str2 = scan.nextLine(); str2 = str1 + str2 ; System.out.println("concat strings : " + str2); System.out.println("Substring in given Concat String : " + str2.substring(2,5)); } }