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  1. class Main {
  2.     static class ClassA {
  3.         public int publicMember;
  4.         private int privateMember;
  5.  
  6.         public static String publicStatic = "Public Static";
  7.         private static String privateStatic = "Private Static";
  8.  
  9.         public ClassA(int x, int y) {
  10.             publicMember = x;
  11.             privateMember = y;
  12.         }
  13.  
  14.         public int getPrivateMember() {
  15.             return privateMember;
  16.         }
  17.         public void setPrivateMember(int v) {
  18.             privateMember = v;
  19.         }
  20.  
  21.         public static String getPrivateStatic() {
  22.             return privateStatic;
  23.         }
  24.         public static void setPrivateStatic(String v) {
  25.             privateStatic = v;
  26.         }
  27.  
  28.         public int calc() {
  29.             return publicMember + privateMember;
  30.         }
  31.     }
  32.  
  33.     static class ClassB extends ClassA {
  34.         private int z;
  35.  
  36.         public ClassB(int x, int y, int z) {
  37.             super(x, y);
  38.             this.z = z;
  39.         }
  40.  
  41.         public int calc() {
  42.             return (super.calc() * z) + publicMember;
  43.         }
  44.     }
  45.  
  46.     public static void main(String[] args) throws Exception {
  47.         ClassA o1 = new ClassA(1, 2);
  48.         ClassA o2 = new ClassA(3, 4);
  49.         ClassB o3 = new ClassB(5, 6, 7);
  50.         ClassB o4 = new ClassB(8, 9, 10);
  51.         ClassB o5 = (ClassB)o4.getClass().getConstructors()[0].newInstance(new Integer(11), new Integer(12), new Integer(13));
  52.  
  53.         System.out.println(o1.calc());
  54.         System.out.println(o2.calc());
  55.         System.out.println(o3.calc());
  56.         System.out.println(o4.calc());
  57.         System.out.println(o5.calc());
  58.  
  59.         ClassA.publicStatic = "Foo";
  60.         ClassA.setPrivateStatic("Bar");
  61.  
  62.         System.out.println(ClassA.publicStatic);
  63.         System.out.println(ClassA.getPrivateStatic());
  64.         System.out.println(ClassB.publicStatic);
  65.         System.out.println(ClassB.getPrivateStatic());
  66.         System.out.println(o5.publicStatic);
  67.         System.out.println(o5.getPrivateStatic());
  68.     }
  69. }
Success #stdin #stdout 0.03s 245632KB
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3
7
82
178
310
Foo
Bar
Foo
Bar
Foo
Bar
https://ideone.com/UtIhS
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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