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 wit
3.Java Collections Interview Questions and Answers 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 collectionstutori...
Java Collectionsis one of the most important areas where you will be tested in junior or senior positions. The scope of questions is so broad that it is almost impossible to cover all the questions. Yet based on my previous interviews, I am attempting to put as many as possible goodintervi...
Oracle provides a Type 4 JDBC driver, referred to as the Oracle “thin” driver. This driver includes its own implementation of a TCP/IP version of Oracle’s Net8 written entirely in Java, so it is platform independent, can be downloaded to a browser at runtime, and does not require an...
These Java interview questions are based-on Core and advanced Java programming topics such as Core Java Concepts, Object-Oriented Programming (OOP), Java Collections Framework, Multithreading, Java I/O, Exception Handling, Java Memory Management, Java Annotations, Java Design Patterns, Java Streams ...
25. Explain what is Ordered in collections.Hide Answer lt means the values that are stored in a collection are based on the values that are added to the collection. 26. Define the term finally block.Hide Answer A finally block in Java is a block of code that is always executed after a...
Java Collections Framework are the fundamental aspect of java programming language. It’s one of the important topic for java interview questions. Here I
The load factor in collections such as HashMap determines when the table should be resized to balance performance and memory efficiency; default is 0.75. 12) How to make HashMap thread-safe? Use Collections.synchronizedMap(new HashMap<>) or ConcurrentHashMap for better concurrent performance. ...
There’s no SkippingIterator class that developers now have to downcast to for those collections that support it. In fact, no code anywhere has to change, and all Iterator<T>s, no matter when they were written, will automatically have this skipping behavior. It is through virtual extension ...
Java garbage collection interview questions often require the interviewee to answer questions about memory leaks, as seen profiled here in Java Mission Control. 8. When would you choose the parallel garbage collector (GC) over Concurrent Mark Sweep (CMS) or the G1 garbage collector?