Java_Week_5_실습

drawTest.java

package week_4_assignment;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class drawTest {

	public static void main(String[] args) {
		
		Shapes panel = new Shapes();
		JFrame application = new JFrame();
		String input = JOptionPane
				.showInputDialog(" Enter 1 to draw 6~20 of Lines \n" + " Enter 2 to draw 6~20 of Circles \n"
						+ " Enter 1 to draw 6~20 of Rectangles \n" + " Enter -1 to exit the program");
		// 입력을 하는 메세지 창을 보여줌
		int choice = Integer.parseInt(input);
		if (choice == -1) {
			System.exit(0);
		}
		panel.setChoice(choice);
		application.dispose();

		application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		application.add(panel);
		application.setSize(300, 300);
		application.setVisible(true);
		
		while (true) {
			String input_2 = JOptionPane.showInputDialog(
					"Enter the number which you want to change color to red\n" + " Enter -1 to exit the program");
			int choice_2 = Integer.parseInt(input_2);
			if (choice_2 == -1) {
				System.exit(0);
			}
			panel.setChoice_2(choice_2);
			application.dispose();

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

	}

}

Shapes.java

package week_4_assignment;

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

import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import java.util.Random;

public class Shapes extends JPanel {
	private int num=0;
	private int choice;
	private int choice_2;
	private Random randomNumbers = new Random();
	private ShapeTest[] myShapes;
	
	public Shapes() {
		setBackground(Color.WHITE);
		
		myShapes = new ShapeTest[ 6 + randomNumbers.nextInt(15)];
		int key = -1;
		for ( int count =0; count< myShapes.length; count++) {
			
			int x1 = randomNumbers.nextInt(300);
			int x2 = randomNumbers.nextInt(300);
			int y1 = randomNumbers.nextInt(300);
			int y2 = randomNumbers.nextInt(300);
			
			Color color = new Color(0,0,0);
			
			myShapes[count] = new ShapeTest(x1, x2, y1, y2, color);
		
			
 		}
		
//		while(key == -1) {
//			String input_2 = JOptionPane.showInputDialog(
//					"Enter the number which you want to change color to red\n" + 
//					"Enter 0 to stop\n" +
//					"Enter -1 to exit the program");
//		}
//		String input_2 = JOptionPane.showInputDialog(
//				"Enter the number which you want to change color to red\n" + 
//				"Enter 0 to stop\n" +
//				"Enter -1 to exit the program");
//		int choice_2 = Integer.parseInt(input_2);
//		if (choice_2 == -1) {
//			System.exit(0);
//		}
		
	}
	public void paintComponent(Graphics g) {
		super.paintComponent(g);
		// super 클래스에 있는 paintComponent 구현내용을 실행해라, 그리고 다음 내용을 실행해라
		if(choice==1) {
			
			if(num==0) {
				for ( ShapeTest shapes: myShapes )
					shapes.draw_line( g );
			}
			else {
				
				myShapes[choice_2].changeColor();
				for ( ShapeTest shapes: myShapes )
					shapes.draw_line( g );
			}
			num++;
		}
		else if(choice==2) {
			if(num==0) {
				for ( ShapeTest shapes: myShapes )
					shapes.draw_circle( g );
			}
			else {
				myShapes[choice_2].changeColor();
				for ( ShapeTest shapes: myShapes )
					shapes.draw_circle( g );
				
			}
			num++;
		}
		else {
			if(num==0) {
				for ( ShapeTest shapes: myShapes )
					shapes.draw_rectangle( g );
			}
			else {
				myShapes[choice_2].changeColor();
				for ( ShapeTest shapes: myShapes )
					shapes.draw_rectangle( g );
			}
			num++;
		}
	}
	
	public void setChoice(int choice) {
		this.choice=choice;
	}
	
	public void setChoice_2(int choice_2) {
		this.choice_2=choice_2;
	}
}

ShapesTest.java

package week_4_assignment;

import javax.swing.JFrame;
import javax.swing.JOptionPane;
import java.util.Random;
import java.awt.Color;
import java.awt.Graphics;

public class ShapeTest {
	private int x1;
	private int x2;
	private int y1;
	private int y2;
	private Color myColor;
	
	public ShapeTest(int x1, int y1, int x2, int y2, Color color)
	{
		this.x1 = x1;
		this.y1 = y1;
		this.x2 = x2;
		this.y2 = y2;
		myColor = color;
		
		}
	
	public void draw_line(Graphics g)
	{
		g.setColor(myColor);
		g.drawLine(x1, y1, x2, y2);
	}
	
	public void draw_circle(Graphics g)
	{
		g.setColor(myColor);
		g.drawOval(x1, y1, x2, y2);
	}
	
	public void draw_rectangle(Graphics g)
	{
		g.setColor(myColor);
		g.drawRect(x1, y1, x2, y2);
	}
	
	public void changeColor() {
		Color color = new Color(219, 68, 85);
		this.myColor = color;
	}
	
}