java jframe

Question

i can't call import javax.swing.*; and my java jframe setBound() is not working although i use setLayout(null);
please give me advice

Answer 1

You sure you used it correctly?
theComponent.setBounds(x,y,width,height);

And did you add the import above the class?

And did you add the component to your frame?
frame.add(component);

Answer 2

Thank for answer my question....here my code
package calculator;

import javax.swing.JFrame;
import javax.swing.JLabel;

public class Calculator {

public static void main(String[] args) {
JFrame j=new JFrame("Calculator");
JLabel l1=new JLabel("firstNumber");
l1.setBounds(40, 200, 100, 35); /*Although i change value of x and y it is not working ...."firstNumber" is always show in same location at lefttop conner of frame */
j.add(l1);

j.setVisible(true);
j.setLayout(null);
j.setSize(400, 600);

}

}
// please give me advice

Answer 3

You need to use the setLayout before you set the frame size

j.setLayout(null);
j.setSize(400, 600);
j.setVisible(true);

And add this so the frame really get closed:
j.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Without this the frame will still be in the background

You can also add this if you want to center your frame:
j.setLocationRelativeTo(null);

Answer 4

:) :) :) it is working now .... Thank You So much .......

Answer 5

You welcome 😊