public class OutClass {private int a;public int b;public OutClass(int a,int b){this.a = a;this.b = b;}private int getA (){return a;}public int getB (){return b;}class InnerClass {private int c;public int d;public InnerClass(int c,int d) {this.c = c;this.d = d;}public int sum(){return a+b;}private int sum1(){return c+d;}//inner class calls out class's private mehtodpublic int getOutA() {return getA();}//inner class calls out class's public methodpublic int getOutB() {return getB();}}//static inner classstatic class InnerClass1 {private static int a=10;private static void printA(){System.out.println(a);}}public static void main(String[] args){OutClass outClass = new OutClass(50,20);InnerClass innerClass = outClass.new InnerClass(100,20);System.out.println(innerClass.sum()); //70System.out.println(innerClass.sum1()); // 120System.out.println(innerClass.getOutA()); // 50System.out.println(innerClass.getOutB()); // 20OutClass.InnerClass1.printA(); //10}}
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