Tag: Java Programs

How to calculate age from Date of Birth in Java – 3 easy way

In this tutorial, We will learn how to calculate age from Date of Birth in Java. We will ask the user to enter their date of birth and from DOB, we will calculate their age also. How to calculate age from Date of Birth in Java We can calculate age from Date of Birth by … Read more ...
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How to accept Date of Birth from user in Java – Best 3 Ways

In this tutorial, We will learn how to accept Date of Birth from user and calculate the user’s age in Java. We will ask the user to enter their date of birth and from DOB, we will estimate their age also. We will learn about how to accept Date of Birth from user only. If … Read more ...
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Bubble Sort in Java with examples

Sorting often refers to arranging an array or collection of components in a specific order, such as ascending or descending order. Bubble Sort is the most straightforward sorting method, which repeatedly switches nearby components if they are in the wrong order. Due to its high average and worst-case time complexity, this approach is inappropriate for huge data sets. ...
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HashMap in Java with examples

Since Java 1.2, HashMap has been part of the Java collection. The java.util package contains this class. It implements the Java Map interface in its most basic form. It holds data as (Key, Value) pairs that can be accessed using a different index type (e.g., an Integer). A key (index) refers to another object (value). Trying to insert the duplicate key overwrites the associated key’s element. ...
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5 Best Ways to Reverse an Array in Java

In this tutorial, We will learn how to reverse an Array in Java by using a simple for loop, by using ArrayList, by using StringBuilder.append( ) and by using ArrayUtils.reverse( ). What is an Array in Java An Array is a collection object which contains multiple elements of the same type. It provides contiguous memory allocation … Read more ...
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Methods in Java with examples

With the help of examples, we will learn about Java methods, define them, and utilize them in Java programs in this article. A method is a piece of code that accomplishes a specific goal. Generally, a method is a collection of statements or statements organized together to conduct a particular task or action. It’s a technique for making code more reusable. We create a method once and then use it repeatedly. ...
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Java vs. Kotlin

We’ll go over the fundamental differences between Java and Kotlin in this tutorial on the difference between Kotlin and Java. But first, let’s understand what Kotlin is before analyzing the differences between Kotlin and Java. as well as what Java is. ...
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Java vs. JavaScript

New programmers and non-technical people have long mistaken Java and JavaScript, yet the only thing they have in common is the word “Java.” Each is a functional programming language in its own right, with advantages over the other. However, programmers utilize Java and JavaScript for various jobs; thus, one isn’t inherently better. ...
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Using If statements in Java

Decision Making in Java is the source of creating decision-driven statements and executing a specific set of code in response to specified situations. The most straightforward basic decision-making statement in Java is the if statement. It is used to determine if a statement or a block of statements will be executed or not, i.e., if a condition is true, a block of statements will be executed, otherwise not. ...
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Best 2 Ways to Give Tab Space in Java

In this tutorial, we will learn how to give tab space in Java. Here we have used the “t” tab space with the example of both numbers and Strings. What is tab space in Java “Tab space is the combination of the 8 characters at a time. So we can also say that it is … Read more ...
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