Collections are used in every programming language and initial java release contained few classes for collections: Vector, Stack, Hashtable, Array. But looking at the larger scope and usage, Java 1.2 came up with Collections Framework that group all the collections interfaces, implementations and alg...
Another good question that is usually followed up after answering how hashmap works. The most important constraint in a Map is thatwe must be able to fetch the ‘Value‘ object back in the future using the ‘Key‘ object. Otherwise, there is no use of having such a data structure. If ...
Java SE is also called Core Java. It is the set of libraries that are part of standard java installation. For example, the Collections framework is part of Core Java. But, Servlet/JSP is part of Java Enterprise Edition. 5. What are the advanced Java Topics? Some of the advanced java c...
Looking forward to appear in Java Interview, here are the key 100+ Java Interview Questions with Answers only for you including some of the tricky questions with answers.Table of ContentsSr.No.Question 1 What are new Java8 Features? 2 Difference between GET & POST METHODS? 3 Difference betwee...
java.util.Vector class was there in java since the very first version of the java development kit (jdk). java.util.ArrayList was introduced in java version 1.2 , as part of Java Collections framework . In java version 1.2 , Vector class has been refactored to implement the List Inteface ...
In the previous question, you learned polymorphism. Now it’s time to expand your knowledge by understandingabstractionas well. A very complicated topic for any Java interview. 1.9.Abstraction vs. Encapsulation? Knowing the difference between abstraction andencapsulationis the key to profoundly understan...
💬 2020-10-17 FYIcenter: Good question! Software testing is a task for a software QA engineer, who runs a large set of use cases on the software to ensur... What is wrong with this initialization?What's wrong with this initialization? char *p = malloc(10); My compiler is complainin...
Another useful interview strategy is to review potential Java interview questions in advance. Let’s check out examples of some of the top Java interview questions. Also, each question includes some information that can help refresh your memory. ...
Executes ajsrto the code for thefinallyclause. Upon return from thefinallyclause, returns the value saved in the local variable. Code example: public static void main(String[] args) { System.out.println(f(2)); } public static int f(int value) { ...
9.6Miscellaneous features, including performance hints, the use of character streams, full precision for java.math.BigDecimal values, additional security, and support for time zones in date, time, and timestamp values. 10Explain garbage collection?