1.What is abstract class in java? Hiding the implementation  and showing the function definition to the user. Abstract class contains abstract methods and concrete methods(normal methods) 2.How can... read more ?

If you want to call static method of a class we can call directly from another static method or by using its class name we can call static... read more ?

1. what is the output of following program: package com.instanceofjava;   public class SuperDemo{ public void show(){     System.out.println("Super class show() method called");   }   }... read more ?

Constructor chaining example program in same class using this keyword. package instanceofjava; class ConstructorChaining{ int a,b  ConstructorChaining(){ this(1,2);  System.out.println("Default constructor");   }    ConstructorChaining(int x , int y){... read more ?

1.What will be the Output of this program. public class HashMapJavaTricky{   public static void main(String[] args) {       HashMap<Integer,String> hm= new HashMap<Integer, String>();        hm.put(1, "one");... read more ?

Java interview Program to find second smallest number in an integer array without sorting the elements. package com.instanceofjava; class SecondSmallestNumber{   int[] x ={10,11,12,13,14,6,3,-1};           int... read more ?