Java Basics Tutorials

What are Java Basics?Java is a programming language that is very popular and used for developing mobile apps and software programs. You will want to understand, be able to explain, and show how to code samples of all the following Java programming language basics:Java Environment SetupJava Basic SyntaxJava Object & ClassesJava Basic DatatypesJava Variable TypesJava …

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Map Data Structure Tutorial

What are Map Data Structures?The Map interface maps unique keys to values. The key is an object we use to retrieve a value.The Dictionary class defined a data structure for mapping keys to values. It was most useful when we wanted to access data with a specific key instead of an integer index. It's an …

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Java Arrays Tutorial

What are Java Arrays?The Java language has primitive and reference data types. An Array is a reference data type with only one field (length). Java Arrays can not be copied by assigning one to another.int[] arrayA = {1, 2, 3, 5}; int[] arrayB = a;arrayB is an alias to the arrayA object above. Both of …

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