JAVA Tutorial

In this tutorial, we will discuss how one can reverse an array in Java. In the input, an integer array is given, and the task is to reverse the input array. Reversing an array means the last element of the input array should be the first element of the reversed array, the second last element of […]

An Array is an essential and most used data structure in Java. It is one of the most used data structure by programmers due to its efficient and productive nature; The Array is a collection of similar data type elements. It uses a contiguous memory location to store the elements. What is a String Array? A […]

In Java, an array is a collection of the same data type that dynamically creates objects and can have elements of primitive types. Java allows us to store objects in an array. An array of objects is a collection of multiple objects stored in a single variable. It stores the references to the objects. It […]

In Java, the Arrays class is a utility class that is a member of the Java collection framework. It belongs to java.util package. The class provides various static methods for manipulating arrays efficiently. It simplifies common operations (like searching, sorting, copying and comparison) on the arrays. To read more Java Arrays Why Use the Java Arrays Class? The main reason for using […]

In Java, an array is a linear data structure that has a collection of the same data type. These elements are stored in a contiguous memory location. In this section, we will discuss a variety of array programs, including array operations, manipulation, sorting, searching, etc. 1. Java program to find the sum of the array […]

A jagged array in Java is a collection of arrays where each array may contain a varied number of elements. A two-dimensional array, in contrast, requires all rows and columns to have the same length. Jagged arrays are also known as “ragged arrays” or “irregular arrays”. They can be created by specifying the size of […]

In Java, the array length is the number of elements that an array can hold. There is no predefined method to obtain the length of an array. We can find the array length in Java by using the array attribute length. We use this attribute with the array name. Array length Attribute Java provides an attribute length that determines the length of an array. Every […]

Multi-dimensional arrays in Java are basically arrays of arrays. It allows us to store data in a tabular or grid-like structure, making them useful for scenarios like matrices, game boards, or any data that requires multiple dimensions. It is useful when we want to store data in tabular form (rows and columns). It can be a […]