Notes

//7.25

package kazilab;

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;

public class DrawRainbow extends JPanel {

private final static Color VIOLET = new Color(128, 0, 128);
private final static Color INDIGO = new Color(75, 0, 130);


private Color[] colors = {Color.WHITE, Color.WHITE, VIOLET, INDIGO, Color.BLUE,
Color.GREEN, Color.YELLOW, Color.ORANGE, Color.RED};

public DrawRainbow() {
setBackground(Color.WHITE);
}

public void paintComponent(Graphics g) {
super.paintComponent(g);
int radius = 20;

int centerX = getWidth() / 2;
int centerY = getHeight() - 10;

for (int counter = colors.length; counter > 0; counter--) {
g.setColor(colors[counter - 1]);
g.fillArc(centerX - counter * radius,
centerY - counter * radius,
counter * radius * 2,
counter * radius * 2,
0,
180);
}
}
}

//7.26

package kazilab;

import javax.swing.JFrame;

public class DrawRainbowTest {

public static void main(String[] args) {
DrawRainbow panel = new DrawRainbow();
JFrame application = new JFrame();

application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
application.add(panel);
application.setSize(400, 250);
application.setVisible(true);
}
}

//8.17

package kazilab;

import java.awt.Color;
import java.awt.Graphics;

public class MyLine {

private int x1;
private int y1;
private int x2;
private int y2;
private Color color;

public MyLine(int x1, int y1, int x2, int y2, Color color) {
this.x1 = x1;
this.y1 = y1;
this.x2 = x2;
this.y2 = y2;
this.color = color;
}

public void draw(Graphics g) {
g.setColor(color);
g.drawLine(x1, y1, x2, y2);
}
}

/ /8.18

package kazilab;

import java.awt.Color;
import java.awt.Graphics;
import java.security.SecureRandom;
import javax.swing.JPanel;

public class DrawPanel extends JPanel {

private SecureRandom randomNumbers = new SecureRandom();
private MyLine[] lines;

public DrawPanel() {
setBackground(Color.WHITE);
lines = new MyLine[5 + randomNumbers.nextInt(5)];

for (int count = 0; count < lines.length; count++) {
int x1 = randomNumbers.nextInt(300);
int y1 = randomNumbers.nextInt(300);
int x2 = randomNumbers.nextInt(300);
int y2 = randomNumbers.nextInt(300);

Color color = new Color(randomNumbers.nextInt(256),
randomNumbers.nextInt(256),
randomNumbers.nextInt(256));

lines[count] = new MyLine(x1, y1, x2, y2, color);
}
}

@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);

for (MyLine line : lines) {
line.draw(g);
}
}
}

/ /8.19

package kazilab;

import javax.swing.JFrame;

public class TestDraw {
public static void main(String[] args) {
DrawPanel panel = new DrawPanel();
JFrame app = new JFrame();

app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
app.add(panel);
app.setSize(300, 300);
app.setVisible(true);
}
}

/ / 9.13

package kazilab;

import java.awt.BorderLayout;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JFrame;

public class LabelDemo {

public static void main(String[] args) {
JLabel northLabel = new JLabel("North");
ImageIcon labelIcon = new ImageIcon("GUItip.gif");
JLabel centerLabel = new JLabel(labelIcon);
JLabel southLabel = new JLabel(labelIcon);
southLabel.setText("South");
JFrame application = new JFrame();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
application.add(northLabel, BorderLayout.NORTH);
application.add(centerLabel, BorderLayout.CENTER);
application.add(southLabel, BorderLayout.SOUTH);

application.setSize(300, 300);
application.setVisible(true);

}
}

****change******
1.

package kazilab;

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;

public class DrawAngry extends JPanel {
public void paintComponent(Graphics g) {
super.paintComponent(g);

// Face
g.setColor(Color.RED);
g.fillOval(10, 10, 200, 200);

// Eyes
g.setColor(Color.BLACK);
// Left eye
g.fillOval(55, 65, 30, 30);
// Right eye
g.fillOval(135, 65, 30, 30);

// Angry eyebrows
g.setColor(Color.BLACK);
g.drawLine(40, 50, 85, 65); // Left eyebrow
g.drawLine(160, 65, 205, 50); // Right eyebrow

// Mouth
g.fillArc(75, 130, 70, 50, 0, -180);

// Convert smile to frown
g.setColor(Color.RED);
g.fillRect(75, 130, 70, 25);
}
}

02.

package kazilab;
import javax.swing.JFrame;

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

JFrame frame = new JFrame("Angry Emoji");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(230, 250); // Set the size of the frame

// Create an instance of the DrawAngryEmoji class
DrawAngry angryPanel = new DrawAngry();

// Add the DrawAngryEmoji panel to the frame
frame.add(angryPanel);

// Make the frame visible
frame.setVisible(true);
}
}

03.

package kazilab;

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;

public class DrawCrying extends JPanel {
public void paintComponent(Graphics g) {
super.paintComponent(g);

// Face
g.setColor(Color.YELLOW);
g.fillOval(10, 10, 200, 200);

// Eyes
g.setColor(Color.BLACK);
// Left eye
g.fillOval(55, 65, 30, 30);
// Right eye
g.fillOval(135, 65, 30, 30);

// Tears
g.setColor(Color.BLUE);
// Left tear
g.fillOval(45, 95, 15, 15);
g.fillOval(50, 110, 10, 10);
// Right tear
g.fillOval(140, 95, 15, 15);
g.fillOval(145, 110, 10, 10);

// Mouth (sad)
g.setColor(Color.BLACK);
g.drawArc(75, 150, 70, 50, 0, -180);
}
}

0.4.
package kazilab;

import javax.swing.JFrame;

public class DrawCryingTest {
public static void main(String[] args) {
// Create a JFrame to hold the DrawCrying panel
JFrame frame = new JFrame("Crying Emoji");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(230, 250); // Set the size of the frame

// Create an instance of the DrawCrying class
DrawCrying cryingEmojiPanel = new DrawCrying();

// Add the DrawCrying panel to the frame
frame.add(cryingEmojiPanel);

// Make the frame visible
frame.setVisible(true);
}
}


05.