51_Panels

// JPanel = a GUI component that functions as a container to hold other components
        
// JFrame = a GUI window to add components to (Look like pop out window)
import javax.swing.*;
import javax.swing.border.Border;
import java.awt.*;
import java.io.*;
import java.util.*;

import static javax.swing.text.StyleConstants.setBackground;

public class Main {
    public static void main(String[] args){

        ImageIcon icon = new ImageIcon("Ph.png");

        JLabel label = new JLabel();
        label.setText("Hi");
        label.setIcon(icon);
        /*label.setVerticalAlignment(label.TOP);
        label.setHorizontalAlignment(label.RIGHT);*///don't need if use layout manager
        label.setBounds(100,100,10,10);

        JPanel redPanel = new JPanel();
        redPanel.setBackground(Color.red);
        redPanel.setBounds(0,0,250,250);//(x,y,width,height)
        redPanel.setLayout(new BorderLayout());

        JPanel bluePanel = new JPanel();
        bluePanel.setBackground(Color.blue);
        bluePanel.setBounds(250,0,250,250);//(x,y,width,height)
        bluePanel.setLayout(null);

        JPanel greenPanel = new JPanel();
        greenPanel.setBackground(Color.green);
        greenPanel.setBounds(0,250,500,250);//(x,y,width,height)
        greenPanel.setLayout(new BorderLayout());

        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation((JFrame.EXIT_ON_CLOSE));
        frame.setLayout(null);
        frame.setSize(750,750);
        frame.setVisible(true);
        greenPanel.add(label);
        frame.add(redPanel);
        frame.add(bluePanel);
        frame.add(greenPanel);
    }
}

//if dw use layout manager, set null