How to clear the console in Java

Question

I want to clear the console. How can I do this?

Answer 1

public static void clearScreen() {  
    System.out.print("\033[H\033[2J");  
    System.out.flush();  
}  

The code given above will help you to clear the screen.

Hope it helps!!

If you want to be the good Java programmer, then it is suggested to join comprehensive Java online course today.

Comments

it not works, am i wrong?

---

Hey,

Are you getting any error in doing this? If you are getting please post it here, it will be helpful to investigate further.

---

not worked just printing this on the console window "\033[H\033[2J".

---

Hey, @There,

I would suggest you try this: 

Runtime.getRuntime().exec("cls");

Answer 2

import java.io.IOException;

public class CLS {
    public static void main(String... arg) throws IOException, InterruptedException {
        new ProcessBuilder("cmd", "/c", "cls").inheritIO().start().waitFor();
    }
}

Now when the Java process is connected to a console, i.e. has been started from a command line without output redirection, it will clear the console.

Answer 3

import java.io.IOException;

public class chkClearScreen {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        clear();
        System.out.println("Screen out has been flushed");
    }

    public static void clear()
    {
        try
        {
            if (System.getProperty("os.name").contains("Windows"))
                new ProcessBuilder("cmd", "/c", "cls").inheritIO().start().waitFor();
            else
                Runtime.getRuntime().exec("clear");
        } catch (IOException | InterruptedException ex) {}
    }
}