Object Oriented Program

In this content snippet, you will find code examples demonstrating the fundamentals of object-oriented programming. It covers concepts like classes, variables, and methods, using visual representations to help illustrate the code. The snippets gradually progress from initial code setups to more complex structures like class definitions and various object manipulations. Dive into this informative material to enhance your understanding of OOP principles.

• Programming
• OOP
• Basics
• Code Examples
• Visual Representation

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Uploaded on Feb 20, 2025 | 0 Views

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1. Object Oriented Program lbg@dongseo.ac.kr

2. initial code float x=100, y=100, hue=60, radius=100; void setup() { size(500, 500); rectMode(CENTER); noStroke(); smooth(); colorMode(HSB, 360, 100, 100); } void draw() { background(255); translate(x, y); noStroke(); fill(hue, 100, 100); ellipse(0, 0, radius, radius); }

3. class code class MovingMark { float x=100, y=100, hue=60, radius=100; float x=100, y=100, hue=60, radius=100; void setup() { size(500, 500); rectMode(CENTER); noStroke(); smooth(); colorMode(HSB, 360, 100, 100); } MovingMark() { x = random(width); y = random(height); hue = radius = } MovingMark(float x, float y, float hue, float radius) { this.x = x; this.y = x; this.hue = hue; this.radius = radius; } void draw() { background(255); translate(x, y); noStroke(); fill(hue, 100, 100); ellipse(0, 0, radius, radius); void draw() { translate(x, y); noStroke(); fill(hue, 100, 100); ellipse(0, 0, radius, radius); } } }

4. change main code - variable style class MovingMark { float x=100, y=100, hue=60, radius=100; MovingMark mk1, mk2, mk3; void setup() { size(500, 500); noStroke(); smooth(); colorMode(HSB, 360, 100, 100); mk1 = new MovingMark(); mk2 = new MovingMark(100, 100, 60, 80); mk3 = new MovingMark(200, 300, 120, 120); } MovingMark() { x = random(width); y = random(height); hue = radius = } MovingMark(float x, float y, float hue, float radius) { this.x = x; this.y = x; this.hue = hue; this.radius = radius; } void draw() { background(255); mk1.draw(); mk2.draw(); mk3.draw(); } void draw() { translate(x, y); noStroke(); fill(hue, 100, 100); ellipse(0, 0, radius, radius); } }

5. change main code - array style class MovingMark { float x=100, y=100, hue=60, radius=100; MovingMark() { x = random(width); y = random(height); hue = random(360); radius = random(50, 100); } MovingMark(float x, float y, float hue, float radius) { this.x = x; this.y = x; this.hue = hue; this.radius = radius; } void draw() { pushMatrix(); translate(x, y); fill(hue, 100, 100); ellipse(0, 0, radius, radius); popMatrix(); } void update() { hue++; if(hue>360) hue=0; x+=random(-5,5); MovingMark[] mks = new MovingMark[20]; void setup() { size(500, 500); noStroke(); smooth(); colorMode(HSB, 360, 100, 100); for(int i=0; i<mks.length; i++) mks[i] = new MovingMark(); } void draw() { background(255); drawAxis(); for(int i=0; i<mks.length; i++) { mks[i].draw(); mks[i].update(); } } void drawAxis() { for(int x=0; x<width; x+=100) line(x, 0, x, height); for(int y=0; y<height; y+=100) line(0, y, width, y); }

6. change main code - arraylist style class MovingMark { float x=100, y=100, hue=60, radius=100; ArrayList<MovingMark> mks; void setup() { size(500, 500); colorMode(HSB, 360, 100, 100); mks= new ArrayList<MovingMark>(); mks.add(new MovingMark()); } void draw() { background(255); drawAxis(); for(int i=0; i<mks.size(); i++) { MovingMark mk = mks.get(i); mk.draw(); mk.update(); } } void mousePressed() { mks.add(new MovingMark(mouseX, mouseY, random(360), random(50,100))); } void drawAxis() { for(int x=0; x<width; x+=100) line(x, 0, x, height); MovingMark() { x = random(width); y = random(height); hue = radius = } MovingMark(float x, float y, float hue, float radius) { this.x = x; this.y = y; this.hue = hue; this.radius = radius; } void draw() { translate(x, y); noStroke(); fill(hue, 100, 100); ellipse(0, 0, radius, radius); } }