Two simple Java programs part 2. Full article at http://www.firsttimeprogrammer.blogspot.com/2015/03/two-simple-java-programs.html

sentenceGenerator.java

import java.util.Scanner;
import java.util.Random;

public class SentenceGeneratorMain 
{
	public static void main(String[] args) 
	{
		//Variables declaration and initialization
		Scanner reader = new Scanner(System.in);
		String input = new String();
		String reply = new String();
		Random rGenerator = new Random();
		boolean again = true;
		boolean first = true;
		//Program description
		String description = "This simple program takes a sentence as input and then\n"
				+ "it prints another sentence of the same length placing the words\n"
				+ "in a random place. Enter a sentence to start. After it has run\n"
				+ "the program asks you if you'd like to play again, enter 'no' to\n"
				+ "terminate the program otherwise enter a random character.\n"
				+ "------------------------------------------------------------------\n"
				+ "Let's start:\n\n";
		
		//Initial prints
		System.out.println(description);
		System.out.println("Enter a sentence: ");
		
		//Main loop
		while(again)
		{
			if(!first){System.out.println("Enter a sentence: ");}
			else{first = false;}
			
			//Reading the input and storing the string as an array
			input = reader.nextLine();
			String[] array = new String[input.split(" ").length];
			for(int i=0; i< array.length; i++)
			{
				array[i] = input.split(" ")[i];
			}
			
			//Sentence generation
			for(int i=0; i < array.length; i++)
			{
				int k = rGenerator.nextInt(array.length);
				System.out.print(array[k]);
				System.out.print(" ");
			}
			
			//Play again?
			System.out.println("\nPlay again?");
			reply = reader.nextLine();
			
			if("no".equals(reply) || "No".equals(reply)){again = false;}
		}
		
		reader.close();
	}
}