Category: Java

This post will discuss how to check if a Collection (Set, List, Map, etc.) is empty in Java.

This post will discuss how to check if an element is present in a Set in Java.

This post will discuss how to find the size of a Java Collection (Set, List, Map, etc.).

This post will discuss how to add the contents of a List into a Set in Java.

This post will discuss how to initialize a 2D array with a specific value in Java.

This post will discuss how to declare an empty array in Java.

This post will discuss how to concatenate two or more byte arrays in Java.

This post will discuss how to check if a value exists in an array in Java. The solution should return true if the array contains the given element; false otherwise.

This post will discuss how to generate a list of sequential integers in Java. The solution should create a list with ranges of numbers between 1 and n.

This post will discuss how to check if an index exists in Java array.

This post will discuss how to report all duplicates in an array in Java

This post will discuss how to print the contents of an array in reverse order in Java.