강의안 추가

vitalholic · vitalholic · commit a662bcc5903f · 2016-11-16T13:16:49.000+09:00
diff --git a/StudyJavaExample/src/j_restriction/Restriction_1.java b/StudyJavaExample/src/j_restriction/Restriction_1.java
@@ -12,6 +12,7 @@ public static void main(String[] args) {
 		System.out.println(st1.a);
 		Static st2 = new Static();
 		System.out.println(st2.a);
+		System.out.println(Static.a);
 	}
 
 }
diff --git a/StudyJavaExample/src/j_restriction/Restriction_2.java b/StudyJavaExample/src/j_restriction/Restriction_2.java
@@ -16,6 +16,12 @@ public class Restriction_2 {
 	public static void main(String[] args) {
 		// TODO Auto-generated method stub
 
+		Bank bk1 = new Bank();
+		Bank bk2 = new Bank();
+		bk1.printMoney(1000, 100);
+		bk2.printMoney(0, 250);
+		bk1.printMoney(0, 800);
 	}
-
 }
+
+
diff --git a/StudyJavaExample/src/k_constructor/Constructor_1.java b/StudyJavaExample/src/k_constructor/Constructor_1.java
@@ -0,0 +1,26 @@
+package k_constructor;
+
+class Inherit{
+	int a;
+	Inherit(){
+		a=1;
+	}
+	Inherit(int num){
+		this.a = num;
+	}
+}
+
+public class Constructor_1 extends Inherit{
+	int b;
+	Constructor_1(int a, int b){
+		super(a);
+		this.b = b;
+	}
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+
+		Constructor_1 ob = new Constructor_1(10,20);
+		System.out.println(ob.a + " " + ob.b);
+	}
+}
diff --git a/StudyJavaExample/src/k_constructor/Constructor_2.java b/StudyJavaExample/src/k_constructor/Constructor_2.java
@@ -0,0 +1,27 @@
+package k_constructor;
+
+class Calc{
+	int x, y, sum;
+	void set(int x, int y){
+		this.x = x;
+		this.y = y;
+	}
+	int GetSum(){
+		return x+y;
+	}
+	void printData(){
+		sum = GetSum();
+		System.out.println("x =" + x  + ", y = " + y);
+		System.out.println("합 = " + sum);
+	}
+}
+public class Constructor_2 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Calc data = new Calc();
+		data.set(10, 20);
+		data.printData();
+	}
+
+}
diff --git a/StudyJavaExample/src/m_inheritance/Inherit_1.java b/StudyJavaExample/src/m_inheritance/Inherit_1.java
@@ -0,0 +1,19 @@
+package m_inheritance;
+
+class Parent{
+	int a;
+	void print(){
+		System.out.println("부모클래스입니다.");
+	}
+}
+public class Inherit_1 extends Parent{
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Inherit_1 ob = new Inherit_1();
+		ob.a = 10;
+		ob.print();
+	}
+}
+
+
diff --git a/StudyJavaExample/src/m_inheritance/Inherit_2.java b/StudyJavaExample/src/m_inheritance/Inherit_2.java
@@ -0,0 +1,25 @@
+package m_inheritance;
+
+class Parent2{
+	int a;
+	Parent2(){
+		a = 10;
+		System.out.println("부모 생성자 호출");
+	}
+}
+public class Inherit_2 extends Parent2{
+	
+	int b;
+	Inherit_2(){
+		// super(); <- 숨어 있다.
+		b = 20;
+		System.out.println("자식 생성자 호출");
+	}
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Inherit_2 ob = new Inherit_2();
+		System.out.println("a의 값 : " + ob.a);
+		System.out.println("b의 값 : " + ob.b);
+	}
+}
+
diff --git a/StudyJavaExample/src/n_interface/Interface_1.java b/StudyJavaExample/src/n_interface/Interface_1.java
@@ -0,0 +1,30 @@
+package n_interface;
+
+interface Hi{ // 인터페이스 Hi 정의
+	void hi(); // 추상메서드 Hi() 선언
+}
+
+interface Say extends Hi{ // 인터페이스 Hi를 상속받는 Say
+	void say(); // 추상메서드 say()선언
+}
+
+class Hey implements Say{ // 인터페이스 Say를 구현
+	public void hi(){ // 추상메서드 hi() 오버라이딩
+		System.out.println("안녕하세요.");
+	}
+	public void say(){ // 추상메서드 say() 오버라이딩
+		System.out.println("잘 부탁드립니다.");
+	}
+}
+
+public class Interface_1 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Hey h = new Hey();
+		h.hi();
+		h.say();
+	}
+}
+
+
diff --git a/StudyJavaExample/src/n_interface/Interface_2.java b/StudyJavaExample/src/n_interface/Interface_2.java
@@ -0,0 +1,19 @@
+package n_interface;
+
+interface My{
+	void name();
+}
+public class Interface_2 implements My{
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Interface_2 i = new Interface_2();
+		System.out.print("My name is " );
+		i.name();
+				
+	}
+	public void name(){
+		System.out.println("popcorn");
+	}
+}
+
diff --git a/StudyJavaExample/src/p_polymorphism/Polymorphism_1.java b/StudyJavaExample/src/p_polymorphism/Polymorphism_1.java
@@ -0,0 +1,17 @@
+package p_polymorphism;
+
+class Over{
+	int a=10;
+}
+public class Polymorphism_1 extends Over{
+	int a = 20;	// 오버라이드
+	void print(){
+		System.out.println(super.a); // 부모로부터 물려받은 멤버, 10 출력
+		System.out.println(this.a); // 자식이 다시 정의한 멤버, 20 출력
+	}
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Polymorphism_1 ob = new Polymorphism_1();
+		ob.print();
+	}
+}
diff --git a/StudyJavaExample/src/p_polymorphism/Polymorphism_2.java b/StudyJavaExample/src/p_polymorphism/Polymorphism_2.java
@@ -0,0 +1,19 @@
+package p_polymorphism;
+
+class Over1{
+	void hello(){
+		System.out.print("Fun! ");
+	}
+}
+public class Polymorphism_2 extends Over1{
+
+	void hello(){			// 오버라이드
+		super.hello();				// 상속 받은 hello() 호출
+		System.out.println("Java");	// 기능 확장
+	}
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Polymorphism_2 ob = new Polymorphism_2();
+		ob.hello();
+	}
+}
diff --git a/StudyJavaExample/src/p_polymorphism/Polymorphism_3.java b/StudyJavaExample/src/p_polymorphism/Polymorphism_3.java
@@ -0,0 +1,22 @@
+package p_polymorphism;
+
+class Over2{
+	void hello(){
+		System.out.print("Fun! ");
+	}
+}
+public class Polymorphism_3 extends Over2{
+
+	void hello(String a){			
+		System.out.println(a);	
+	}
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Polymorphism_3 ob = new Polymorphism_3();
+		ob.hello();
+		ob.hello("Java");
+	}
+}
+
+
+
diff --git a/StudyJavaExample/src/p_polymorphism/Polymorphism_4.java b/StudyJavaExample/src/p_polymorphism/Polymorphism_4.java
@@ -0,0 +1,37 @@
+package p_polymorphism;
+
+class Shape{
+	
+	String color;
+	
+	void draw(){
+		System.out.println("그린다.");
+	}
+	
+	void paint(String color){
+		this.color = color;
+		System.out.println(this.color + " 색칠한다.");
+	}
+}
+
+class Circle extends Shape{
+	String type;
+}
+
+class Rectangle extends Shape{
+	String type;
+	void draw(){
+		System.out.println("Rectangle");
+	}
+}
+public class Polymorphism_4 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Shape s1 = new Circle();
+		s1.paint("RED");
+		Shape s2 = new Rectangle();
+		s2.draw();
+	}
+
+}

Original file line number	Diff line number	Diff line change
`@@ -12,6 +12,7 @@ public static void main(String[] args) {`
`12`	`12`	`System.out.println(st1.a);`
`13`	`13`	`Static st2 = new Static();`
`14`	`14`	`System.out.println(st2.a);`
	`15`	`+ System.out.println(Static.a);`
`15`	`16`	`}`
`16`	`17`
`17`	`18`	`}`
Original file line number	Diff line number	Diff line change
`@@ -16,6 +16,12 @@ public class Restriction_2 {`
`16`	`16`	`public static void main(String[] args) {`
`17`	`17`	`// TODO Auto-generated method stub`
`18`	`18`
	`19`	`+ Bank bk1 = new Bank();`
	`20`	`+ Bank bk2 = new Bank();`
	`21`	`+ bk1.printMoney(1000, 100);`
	`22`	`+ bk2.printMoney(0, 250);`
	`23`	`+ bk1.printMoney(0, 800);`
`19`	`24`	`}`
`20`		`-`
`21`	`25`	`}`
	`26`	`+`
	`27`	`+`