じゃヴぁ５１

import java.awt.*;

public class java51 {
    Frame frame;

    public java51() {
        frame = new Frame( "フレーム" );
        frame.setSize( 500, 500 );
        frame.setVisible( true );
    }

    public static void main( String[] args ) {
        java51 pon = new java51();
    }
}