...

src/kr/co/swh/lecture/java/scene3/CallByReference.java

@@ -14,23 +14,21 @@ package kr.co.swh.lecture.java.scene3;
  */
 public class CallByReference {
 	
-	public static void main(String[] args) { 
-		Reference a = new Reference(5);
-		Reference b = a;
-//		System.out.println(System.identityHashCode(a));
-//		System.out.println(System.identityHashCode(b));
-		a.add(1);
-		System.out.println(a.a);
-		System.out.println(b.a);
+	private String name;
+	public CallByReference(String name) {
+		// TODO Auto-generated constructor stub
+		this.name = name;
 	}
-}
-
-class Reference{
-	public Integer a;
-	public Reference(int value){
-		this.a = new Integer(value);
+	public static void setName(CallByReference b){
+		System.out.println(System.identityHashCode(b));
+		b.name = "유키";
+		System.out.println("***:"+System.identityHashCode(b));
 	}
-	public void add(Integer value){
-		a = a + value;
+	public static void main(String[] args) { 
+		CallByReference a = new CallByReference("코야");
+		System.out.println(System.identityHashCode(a));
+		setName(a);
+		System.out.println(a.name);
+		System.out.println(System.identityHashCode(a));
 	}
 }