IS-A Vs HAS-A Relationship in Java
Learn different aspects of IS-A Vs HAS-A Relationship in Java. IS-A (Inheritance) relationship and HAS-A (composition) relationship play a vital role in design consideration, design principles.
core java
How to Reverse Array In Java
Learn how to Reverse Array In Java using in-place swipe by character for loop, usng in-place swipe by for loop. Java example code for reversing of String or string array or int array.
How to Check two String are Anagram or not in Java
How to Check two String are Anagram or not in Java. Check if two string are anagram in Java. using for loop, using while loop, using stringBuilder, using array etc.
How to Reverse String in Java
Learn How to Reverse String in Java, using the library, iteration, and recursive iteration, using StringBuffer, StringBuilder class, using for loop, using recursive appproach, using in place.
Runnable Vs Callable in Java
Learn Runnable Vs Callable in Java. Different aspects of Java Runnable and callable example.
Difference Between HashMap and HashSet in Java
Difference between HashMap and HashSet is one of the most frequently asked interview questions during any level of core java interview.
Enumeration VS Iterator in Java
Learn Enumeration VS Iterator in Java with different aspects. Enumeration for read operation while
fail-fast iterator vs fail-safe iterator in Java
Learn different aspects of fail-fast vs fail-safe iterator in Java. In Java fail-fast iterator and fail-safe iterator intent are same to some extent but one abort operations another not abort.
Print Odd and Even Number by Thread using Semaphore
Learn how to print odd even using two threads in Java using Semaphore. One thread print even number and 2nd thread print odd mumber using Semaphore.
What is Enum in Java
Learn different aspects of what is enum in java? Enum in Java is a keyword, a feature that is used for constant.