Answer to Question #297623 in Java | JSP | JSF for Greta

Question

Write a program to take a String as input then display the first and last letter of each word with a condition that if it is having one character then it will remain as it is using only indexOf() function.

For example:

Enter a String

ASia is A conTinEnT

Modified: Aa is A cT

Don't use array[] and split

Answer 1

import java.util.*;


class App {


	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		System.out.println("Enter a String: ");
		String string = in.nextLine();
		String stringModified = "";
		int index = 0;
		stringModified = "";


		int prevIndex = 0;
		while (index != -1) {
			prevIndex = index;
			index = string.indexOf(' ', index);
			if (index != -1) {
				index++;
				if (((index - 1) - prevIndex) >= 2) {
					stringModified += "" + string.charAt(prevIndex) + string.charAt(index - 2) + " ";
				} else {
					stringModified += ("" + string.charAt(prevIndex)) + " ";
				}
			}
		}
		stringModified += "" + string.charAt(prevIndex) + string.charAt(string.length() - 1) + " ";
		System.out.println("Modified: " + stringModified);


		in.close();
	}
}