OOP Student Lesson
OOP
What is OOP
- OOP is object oriented programming
- programming pardigm centered around objects
Classes and Objects
- classes are templates or a blueprint, contatin data
- objects are instances of a class, need to be instantiated
- methods are functions of a class
- Method Declaration consists of 6 components: Access modifer, Return type, Method name, Parameter list, Exception list, Method body
- Calling a method allows for code reuse, optimization, and organization To call an object's method you have to make an object reference
HW
Goblin Game
public class Goblin {
private String name;
private int HP;
private int DMG;
private double hitChance;
public String getName() {
return name;
}
public int getHP() {
return HP;
}
public int getDMG() {
return DMG;
}
public double getHitChance() {
return hitChance;
}
public boolean isAlive() {
if (this.HP > 0) {
return true;
} else {
return false;
}
}
public void setName(String newName) {
this.name = newName;
}
public void setHP(int newHP) {
this.HP = newHP;
}
public void takeDMG(int takenDamage) {
this.HP -= takenDamage;
}
public void setDMG(int newDMG) {
this.DMG = newDMG;
}
public void setHitChance(double newHitChance) {
this.hitChance = newHitChance;
}
}
import java.lang.Math;
public class Duel {
public static void attack(Goblin attackerGoblin, Goblin attackeeGoblin) {
System.out.println(attackerGoblin.getName() + " attacks " + attackeeGoblin.getName());
if (Math.random() < attackerGoblin.getHitChance()) {
attackeeGoblin.takeDMG(attackerGoblin.getDMG());
System.out.println(attackerGoblin.getName() + " hits");
System.out.println(attackeeGoblin.getName() + " takes " + attackerGoblin.getDMG() + " damage");
} else {
System.out.println(attackerGoblin.getName() + " misses");
}
System.out.println(attackeeGoblin.getName() + " HP: " + attackeeGoblin.getHP());
System.out.println();
}
public static void fight(Goblin goblin1, Goblin goblin2) {
while (goblin1.isAlive() && goblin2.isAlive()) {
attack(goblin1, goblin2);
if (!goblin1.isAlive()) {
System.out.println(goblin1.getName() + " has died");
break;
}
attack(goblin2, goblin1);
if (!goblin2.isAlive()) {
System.out.println(goblin2.getName() + " has died");
break;
}
}
}
public static void main(String[] args) {
Goblin goblin1 = new Goblin();
goblin1.setName("bob");
goblin1.setHP(12);
goblin1.setDMG(2);
goblin1.setHitChance(0.8);
Goblin goblin2 = new Goblin();
goblin2.setName("rob");
goblin2.setHP(4);
goblin2.setDMG(1);
goblin2.setHitChance(0.8);
fight(goblin1, goblin2);
}
}
Duel.main(null);