Question

I compiled two java source codes, namely version.class and open.class

Basically, the version.class holds the public static void main clause, while the open.class is mainly a set of constructors that makes the whole program work.

Here is how I did it:

if ("n".equalsIgnoreCase(input)) {
    new open();
} else if ("q".equalsIgnoreCase(input)) {
        System.exit(0);
    }

The problem is when I run it in CMD, where I did type this:

java version

it says that the command can not find or load the main class. What is the main problem why this happens? Thank you. I was hoping this would run in CMD as well when compiled, so I could make a bat file to make the program run in CMD as well.
Edit:

Here is the whole version class:

import java.util.Scanner;
public class version{
public static String input;
public static Scanner s = new Scanner (System.in);

public static void main (String [] args ) {
    System.out.println("========================");
    System.out.println("ANAGRAM MASTER VERSION 1.0");
    System.out.println("Created by: Janrae Mendoza");
    System.out.println("==========================");
    System.out.println("Press the corresponding letters for your desired option: ");
    System.out.println("<n> New Game");
    System.out.println("<q> Quit Game");
    input = s.nextLine();

if ("n".equalsIgnoreCase(input)) {
    new open();
} else if ("q".equalsIgnoreCase(input)) {
        System.exit(0);
    }
    }

}

while this is the open class:

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


public class open{

public String input;
public Scanner s = new Scanner (System.in);
public Random r = new Random();

//at least 25 words
public String scrambled[] = {"MICSECO", "LEPAIM", "ICHORE", "MLORTA", "TIEEXSUQI",
        "MEERTO", "DESTOAK", "MLIBOE", "PHRAPARGA", "UALBILNGI", "DOXORTHRO",
        "ZEIMESREM", "OKVEPRO", "ILAPRS", "TEMOED", "QUEMSADRAE", "LSEIMUP",
        "CREUPRO", "BLRUNDE", "CKRENO", "UIPRSUT", "BINMEHLOGO", "DRKERA",
        "SEACEDAP", "SOULEAZ"};

public String scrAns[] = {"ECONOMICS", "IMPALE", "HEROIC", "MORTAL", "EXQUISITE",
        "REMOTE", "STOCKADE", "MOBILE", "PARAGRAPH", "BILINGUAL", "ORTHRODOX",
        "MESMERIZE", "PROVOKE", "SPIRAL", "DEMOTE", "MASQUERADE", "IMPULSE",
        "PROCIRE", "BLUNDER", "RECKON", "PURSUIT", "HEMOGLOBIN", "DARKER",
        "ESCAPADE", "ZEALOUS"};

public int word;
public boolean stop = false;
public int scrnum;
public int timesplayed;

public void sleep() {
    try {
        Thread.sleep(1000);
    } catch (Exception e) {}
}

public open() {
        while (stop == false) {
            sleep();
    System.out.println("Guess out the scrambled word!");
    word = r.nextInt(24);
    scrnum = word;
    System.out.println("ANAGRAM: " + scrambled[word]);
    System.out.print("YOUR ANSWER: ");
    input = s.nextLine();
        if (input.equalsIgnoreCase(scrAns[scrnum])) {
            System.out.println("You guessed the word right!");
            System.out.println("Continue playing? <y> Yes and any other keys for No");
            input = s.nextLine();
                if ("y".equalsIgnoreCase(input)) {
                    timesplayed++;
                } else {
                                        stop = true;
                                    }
        }

        }
        System.out.println("Thank you for trying out version 1 of this game! You played " + timesplayed
                + " times! Enjoy your day, player!");
}

}

Answer 1

As per your question , I can see that you have created two classes and they are

1. version.class
2. open.class

where from you are getting “titleScreen” class ?

You have main method only in version.class .
So , the main() method of the version.class can only be the entry point .

You can run the program in like the following :

java version titleScreen

titleScreen can be the input of this program.