Hi friend,

Code to solve the problem :

import java.io.*;

public class ReadString {
public static void main(String [] args) throws IOException{
try{
BufferedReader br = new BufferedReader(
new InputStreamReader(System.in));
System.out.println("Enter First String");
String str1= br.readLine();

System.out.println("Enter Second String");
String str2= br.readLine();

System.out.println("Enter Third String");
String str3= br.readLine();

int index = str2.indexOf(str3);

String str4 = str2.substring(0,3);
System.out.println("Output String " + str1 + str4);

}
catch(Exception e){
System.out.println("Out of range!");
}
}
}

For more information on Java visit to :

http://www.roseindia.net/java/beginners/

Thanks