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https://bitbucket.org/Mattrixwv/javatutorials.git
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Added a program that draws some simple shapes
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Shapes.java
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30
Shapes.java
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//Programs/Java/JavaTutorials/Shapes.java
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//Matthew Ellison
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// Created: 02-12-19
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//Modified: 002-12-19
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//Demonstration of drawing rectangles and ovals
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//Ovals work very similarly to rectanges. In the program it draws a bounding rectangle then draws the oval within it
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import java.awt.Graphics;
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import javax.swing.JPanel;
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public class Shapes extends JPanel{
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private int choice; //The choice of what shape to draw
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//Constructor
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public Shapes(int userChoice){
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choice = userChoice;
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}
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//Draws the shapes
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public void paintComponent(Graphics g){
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super.paintComponent(g);
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for(int cnt = 0;cnt < 10;++cnt){
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//Pick a shape based on what the user chose
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switch(choice){
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case 1: g.drawRect(10 + (cnt * 10), 10 + (cnt * 10), 50 + (cnt * 10), 50 + (cnt * 10)); break;
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case 2: g.drawOval(10 + (cnt * 10), 10 + (cnt * 10), 50 + (cnt * 10), 50 + (cnt * 10)); break;
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}
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}
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}
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}
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28
ShapesTest.java
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ShapesTest.java
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//Programs/Java/JavaTutorials/Shapes.java
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//Matthew Ellison
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// Created: 02-12-19
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//Modified: 002-12-19
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//Demonstration of drawing rectangles and ovals
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import javax.swing.JFrame;
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import javax.swing.JOptionPane;
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public class ShapesTest{
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public static void main(String[] argv){
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//Get the user's choice
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String input = JOptionPane.showInputDialog("Enter 1 to draw rectangles\nEnter2 to draw ovals");
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//Convert the input to an int
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int choice = Integer.parseInt(input);
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//Create the panel with the shapes drawn on it
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Shapes panel = new Shapes(choice);
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//Create a new frame
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JFrame application = new JFrame();
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application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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application.add(panel);
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application.setSize(300, 300);
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application.setVisible(true);
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}
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}
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