Windowのサイズ

//setSize(300,100);
//setSize(W,H);

import java.awt.*;
import java.awt.event.*;

public class BtnTest extends Frame
{
    
    public BtnTest () {
        super();
        setSize(300,100);
    }
    
    public static void main(String args[]) {
        BtnTest f = new BtnTest();
        f.show();
    }
}