system.in example in java
package com.mkyong.io;
import java.util.Scanner;
public class JavaScanner {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = "";
        while (!"q".equalsIgnoreCase(input)) {
            System.out.print("Enter something (q to quite): ");
            input = scanner.nextLine();
            System.out.println("input : " + input);
        }
        System.out.println("bye bye!");
    }
}
