java oop : JVM Memory Model

JavaOOP/src/Java08.java

@@ -0,0 +1,13 @@
+public class Java08 {
+    public static void main(String[] args) {
+        int a = 30;
+        int b = 50;
+        int v = add(a, b); // static method call
+        System.out.println(v);
+    }
+
+    public static int add(int a, int b) {
+        int sum = a + b;
+        return sum;
+    }
+}

JavaOOP/src/Java09.java

@@ -0,0 +1,15 @@
+public class Java09 {
+    public static void main(String[] args) {
+        int a = 56;
+        int b = 40;
+
+        Java09 java09 = new Java09(); // heap area 에 객체 생성
+        int v = java09.add(a, b);
+        System.out.println(v);
+    }
+
+    public int add(int a, int b) {
+        int sum = a + b;
+        return sum;
+    }
+}