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JOptionPane doesn't show; application combines Swing and console.

−1

What is wrong in the following code:

package oren;
import java.util.Scanner;

import javax.swing.JOptionPane;

public class Main {

	public static void main(String[] args) {
		double x,y,z;
		Scanner scanner = new Scanner(System.in);
		System.out.println("what are the x and y side of the triangle");
		x = scanner.nextDouble();
		scanner.nextLine();
		y = scanner.nextDouble();
		scanner.nextLine();
		scanner.close();
		JOptionPane.showMessageDialog(null, Math.sqrt(x*x + y*y));

		
	}

}

For some reason the JOptionPane.showMessageDialog doesn't show.
However, there are no error messages.
I am using Eclipse and Java 21.

java swing Eclipse

posted 3 months ago

CC BY-SA 4.0

3mo ago by FractionalRadix‭

programAngel‭

4 reputation 1 2 -8 6

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2 comment threads

Works with OpenJDK 21 (IntelliJ on Ubuntu) (4 comments)

Errors (2 comments)

1 answer

−0

Apparently the JOptionPane is behind eclipse as it not not the top windows. It does "show" but only behind eclipse.

Thanks FractionalRadix‭