Java

Java is a high-level, class-based, object-oriented programming language

You may think that history makes facts. You will be amazed to know Java history...

10 Questions

There are some important acronyms which java developers usually use to communica...

10 Questions

This quiz will help you recognize common compilation errors. Usually, IDEs are ...

4 Questions

Some fundamental questions about Java that you should know and may be asked duri...

6 Questions

Test your knowledge with some basic knowledge of Java

8 Questions

Array is an important structure in programming language and Java programming lan...

4 Questions

The quiz presents a Java code that takes an input and prints an output based on ...

5 Questions
Check if a string is Null or Empty

It is sometimes not practical to work out a string object immediately before validating if it is null or not

Check if a string has a white space at any position

It is important sometimes to check a string and make sure that it does contain a white space (e.g. space, new line, tab, etc ...).

Make a phone number callable in Android

You may want to present a number and make it callable.

An efficient way to delete an item from a dynamic list

It is sometimes tricky working with linked lists if you are searching for an item to delete it.

Variables and Memory Optimization

When you start coding, you need to be mindful to memory usage and leakage.


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