Java 8 has been released in March 2014, so it’s one of the hot topics in java interview questions. If you answer this question clearly, it will show that you like to keep yourself up-to-date with the latest technologies. Java 8 has been one of the biggest releases after Java 5 anno...
Collections are core components of Java programming language. They are widely used in interview questions. The post contains 40+ questions on java collections to make sure all the topics are covered. I also recommend you to readjava collectionstutorial. 4.Java String Interview Questions and Answers...
This is a verypopular tricky Java questionand its tricky because many programmer think that finally block always executed. This question challenge that concept by putting return statement in try or catch block or calling System.exit from try or catch block. Answer of this tricky question in Java...
Another good question, I think answer is not sufficient but here it is “Substring creates new object out of string by taking a portion of original string”. suggested by Anand and Anonymous The substring() method is used to return a part (or substring) of the String used to invoke the ...
Create a MaxStack class that extends this class and adds a max() method that returns the largest element in the MaxStack as an O(1) operation without damaging the Big-O complexity of the existing methods.Why this Java question?Big-O complexity may sound like a theoretical concept, but ...
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9.1Scrollable result sets - using new methods in the ResultSet interface allows programmatically move the to particular row or to a position relative to its current position. The methods is ResultSet.relative(…). 9.2JDBC 2.0 Core API provides the Batch Updates functionality to the java applicatio...
It is not possible to include every possible question in this guide, so I have included some good resources at the end of this interview guide. 1. Core Java Questions 1.1.Core Java Interview Questions Generally, each interviewer will start with core Java concepts before jumping onto more advanc...
Java Basics Common Knowledge Points & Interview Questions Summary (Part 1), the latest version in 2022! Java basic common knowledge points & interview questions summary (in), the latest version of 2022 abnormal Java exception class hierarchy diagram overview: ...
has seen this question on core Java or J2EE interview. Well there are many difference between them but most important isthread-safety,HashMapis not thread-safe whileHashtableis thread-safe collection. SeeHashtable vs HashMap in Javafor more differences between HashMap and Hashtable in Java. ...