Another Java collection question which appear as part ofJava Coding interview questionand appeared in many interviews. As you know there are multiple ways to traverse or iterate Map in Java e.g. for loop, while loop using Iterator etc.4 ways to iterator Map in Javahas detailed explanation and...
If you are working on Enterprise applications, I am sure that JDBC API is a part of it. JDBC API provides database connectivity for relational databases, such as MySQL and Oracle. This article has a collection of 40+ interview questions related to the JDBC API. They cover areas from basic...
Suppose you are preparing for a Java interview with a Telecom company or any such domain that uses serialization in their application flows. In that case, you will highly benefit from this tutorial. There is a very good list of do’s and dont’s with serialization in Java. Possible question...
We need to implement Comparable interface to support sorting of custom objects in a collection. The Comparable interface has compareTo(T obj) method which is used by sorting methods and by providing this method implementation, we can provide default way to sort custom objects collection. However, ...
Instance of Java. Java beginner tutorial. A place where you can learn java in simple way each and every topic covered with many points and sample programs.
Looking forward to appear in Java Interview, here are the key Java Interview Questions with Answers only for you. - aatul/Java-Interview-Questions-Answers
11How you can force the garbage collection? Garbage collection automatic process and can't be forced. 12What is OOPS? OOP is the common abbreviation for Object-Oriented Programming. 13Describe the principles of OOPS. There are three main principals of oops which are called Polymorphism, Inheritan...
class InterviewBit{ String department; String service; InterviewBit(InterviewBit ib){ this.departments = ib.departments; this.services = ib.services; } } Here we are initializing the new object value from the old object value in the constructor. Although, this can also be achieved with the ...
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An object is created using the ‘new’ keyword. For example: ClassName obj = new ClassName(); 6. What is Object Oriented Programming? Object-oriented programming or popularly known as OOPs is a programming model or approach where the programs are organized around objects rather than logic and ...