Java Programs

Array | How Can I Declare And Initialize An Array In Java?

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In this tutorial, we will learn How Can I Declare And Initialize An Array In Java? As we know array is used for storing similar elements in a sequence. To Initialize an array we need to declare it with the size we want to use. Array In Java The array is a data type where … Read more

What is Object Oriented Programming And How Is It Better then Procedural Programming?

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Today we will discuss Why Java Is Called As Object Oriented Programming? As Java deals with Classes and their Objects and has a number of concepts like Polymorphism, Abstraction, Inheritance, and Encapsulation which are called OPPs concepts. Object Oriented Programming There are a number of advantages of Object-oriented programming which are not there in procedural … Read more

Switch | What Is The Difference In if/else And Switch Statement In Java?

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Here in this tutorial, we will draw some Difference In if/else And switch Statement In Java. The switch is used for comparing integers and character values where as if-else can be used for comparing any data type. There are many more differences between the two that we will discuss here. Conditional Operators there are two … Read more

Implements vs Extends: When To Use In Java?

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Here we are going to differentiate between Implements and Extends, and When To Use In Java? Implements are used for interface inheritance and extended if used for class inheritance.  What Are Implements? It is a keyword used for inheriting the properties or member functions along with variables in an interface from another interface and that … Read more

How to convert an Array to a Set in Java?

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In This tutorial, we will Learn How to convert an Array to a Set in Java? We can do say this using two ways one is a native method where we simply iterate the array and keep storing the elements in a pre-initialized set. And another method could be using the inbuild function set.of() and … Read more

How Can I Pass An Array As Arguments To A Method With Variable Arguments In Java?

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Here We will See Can I Pass An Array As Arguments To A Method With Variable Arguments In Java? As per the Answer Yes we can and for the same, we simply pass it as other variables. Array The array is a data structure that stores mutable values in a continued memory location and we … Read more

How Array are Sort In Java? Ascending or Descending

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Here we will learn How Array are Sort In Java? Ascending or Descending As there are a number of algorithms to sort an array but here we will use an inbuild function of Array. sort(arr, Collections.reverseOrder()) which will sort the array arr and return the sorted array in descending order. Array Sorting Array sorting means … Read more

Array | How to add new elements to an array?

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Now we will learn How to add new elements to an array? we can do so simply by giving swapping the elements of the existing array to the right to add in between and for adding at the end we can simply by giving index number and against giving the value which you want to … Read more

How to find the index of an element in an array in Java?

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In this tutorial, we will learn How to find the index of an element in an array in Java? As we know each element in an array is stored at specific locations which we call index numbers and that index number can be found simply by iterating the array as a whole and getting the … Read more

Java | What Is The Difference Between Variable, Object, And Reference?

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In This Tutorial we will Discuss Java | What Is The Difference Between Variable, Object, And Reference? A variable is used for storing the data, Objects are the instant of class, and reference types points toward the object stored in the heap area and store the address. What Is Variable In Java? Variables are some … Read more

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