ÀÎÅÍÆäÀ̽º ¿¹Á¦
UpcastingClassTest.java
class Shape {
public void draw() {
System.out.println("¸ð¾çÀ» ±×¸³´Ï´Ù");
}
public void delete() {
System.out.println("¸ð¾çÀ» Áö¿ó´Ï´Ù");
}
}
class Circle extends Shape {
public void draw() {
System.out.println("¿øÀ» ±×¸³´Ï´Ù");
}
public void delete() {
System.out.println("¿øÀ» Áö¿ó´Ï´Ù");
}
public void sayCircle() {
System.out.println("¾È³çÇϼ¼¿ä ¿øÀÔ´Ï´Ù");
}
}
class Triangle extends Shape {
public void draw() {
System.out.println("»ï°¢ÇüÀ» Çϳª, µÑ, ¼Â, ±×¸³´Ï´Ù.");
}
public void delete() {
System.out.println("»ï°¢ÇüÀ» Áö¿ó´Ï´Ù");
}
public void sayTriangle() {
System.out.println("¾È³çÇϼ¼¿ä »ï°¢ÇüÀÔ´Ï´Ù");
}
}
class Rectangle extends Shape {
public void draw() {
System.out.println("»ç°¢ÇüÀ» ¿ø, Åõ, ¾²¸®, Æ÷ ±×¸³´Ï´Ù.");
}
public void delete() {
System.out.println("»ç°¢ÇüÀ» Áö¿ó´Ï´Ù");
}
public void sayRect() {
System.out.println("¾È³çÇϼ¼¿ä »ç°¢ÇüÀÔ´Ï´Ù");
}
}
public class UpcastingClassTest {
public static void main(String[] args) {
Shape s = new Shape();
s.draw();
s.delete();
System.out.println();
//Ŭ·¡½ºÀÇ ±âº»ÀûÀÎ »ç¿ë¹ý
Circle c = new Circle();
c.draw();
c.delete();
c.sayCircle();
System.out.println();
Triangle t = new Triangle();
t.draw();
t.delete();
t.sayTriangle();
System.out.println();
Rectangle r = new Rectangle();
r.draw();
r.delete();
r.sayRect();
System.out.println();
//UpcastingÀÇ »ç¿ë
Shape c1 = new Circle();
c1.draw();
c1.delete();
//c1.sayCircle(); ¿¡·¯°¡ ¹ß»ýÇÕ´Ï´Ù.
System.out.println();
Shape t1 = new Triangle();
t1.draw();
t1.delete();
//t1.sayTriangle(); ¿¡·¯°¡ ¹ß»ýÇÕ´Ï´Ù.
System.out.println();
Shape r1 = new Rectangle();
r1.draw();
r1.delete();
//r1.sayRect(); ¿¡·¯°¡ ¹ß»ýÇÕ´Ï´Ù.
}
}
C:\5>javac UpcastingClassTest.java
C:\5>java UpcastingClassTest
¸ð¾çÀ» ±×¸³´Ï´Ù
¸ð¾çÀ» Áö¿ó´Ï´Ù
¿øÀ» ±×¸³´Ï´Ù
¿øÀ» Áö¿ó´Ï´Ù
¾È³çÇϼ¼¿ä ¿øÀÔ´Ï´Ù
»ï°¢ÇüÀ» Çϳª, µÑ, ¼Â, ±×¸³´Ï´Ù.
»ï°¢ÇüÀ» Áö¿ó´Ï´Ù
¾È³çÇϼ¼¿ä »ï°¢ÇüÀÔ´Ï´Ù
»ç°¢ÇüÀ» ¿ø, Åõ, ¾²¸®, Æ÷ ±×¸³´Ï´Ù.
»ç°¢ÇüÀ» Áö¿ó´Ï´Ù
¾È³çÇϼ¼¿ä »ç°¢ÇüÀÔ´Ï´Ù
¿øÀ» ±×¸³´Ï´Ù
¿øÀ» Áö¿ó´Ï´Ù
»ï°¢ÇüÀ» Çϳª, µÑ, ¼Â, ±×¸³´Ï´Ù.
»ï°¢ÇüÀ» Áö¿ó´Ï´Ù
»ç°¢ÇüÀ» ¿ø, Åõ, ¾²¸®, Æ÷ ±×¸³´Ï´Ù.
»ç°¢ÇüÀ» Áö¿ó´Ï´Ù
ÀÎÅÍÆäÀ̽ºÀÇ Upcasting ¿¹Á¦
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