Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Java Articles
Page 203 of 450
Java Program to Get System IP Address in Windows and Linux Machine
IP Address, also known as the Internet Protocol Address is a unique identifier that is assigned to a device in a network to identify the devices in the network and establish a connection between them. In this section, we will learn how to find the IP Address of a Windows and Linux Machine using Java Code. The IP Address can be represented in two formats. One format is IPv4 which is a 32 format containing decimals and dots. It has two parts, one part is network ID which identifies the network and the other is host ID which identifies ...
Read MoreJava program to verify whether a given element exists in an array
Given an array and one of its element as an input, write a Java program to check whether that element exists in given array or not. You can find any element from an array using search algorithms. In this article, we will use linear search and binary search algorithms. Using Linear Search Algorithm In this approach, follow the steps below to verify whether a given element exists in an array − Iterate through the array using for loop. Compare each element with the required element. If found return the index. Example The following Java program shows how ...
Read MoreJava strictfp keyword
The strictfp keyword is a modifier that stands for strict floating point. As the name suggests, it ensures that floating-point operations give the same result on any platform. This keyword was introduced in Java version 1.2. In Java, the floating point precision may vary from one platform to another. The strictfp keyword solves this issue and ensures consistency across all platforms. With the release of Java 17 version, the strictfp keyword is no longer needed. Regardless of whether you use this keyword, the JVM now provides consistent results for floating-point calculations across different platforms. When to use Java strictfp keyword? ...
Read MoreJava program to Print Odd and Even Number from an Array
Given an array of type Integer, write a Java program to find the odd and even numbers from that array. Those numbers which are completely divisible by 2 are called even numbers and if a number gives 1 as a remainder on dividing with 2 is known as odd number. Printing Odd and Even Number from an Array To print odd and even number from an array in Java, use the following ways − Using for Loop Using stream API Using for Loop In this approach, use the for ...
Read MoreJava program to Print Odd and Even Number from an Array
Given an array of type Integer, write a Java program to find the odd and even numbers from that array. Those numbers which are completely divisible by 2 are called even numbers and if a number gives 1 as a remainder on dividing with 2 is known as odd number. Printing Odd and Even Number from an Array To print odd and even number from an array in Java, use the following ways − Using for Loop Using stream API Using for Loop In this approach, use the for ...
Read MoreJava Program to Compute the Running Total of a List
A running total (also known as an accumulated total) of a list represents the sum of a sequence of elements. As new elements are added to the sequence, the running total continuously updates. To perform this operation in Java, we can use for loop and while loop in our program. The program will have a time complexity of O(n), where n is the number of elements in the list because it loops through the list once and performs a constant-time operation for each element in the list. List is an interface of Java Collection Framework that stores collections of objects. ...
Read MoreJava Program to Create a Matrix and Fill it With Prime Numbers
As per the problem statement, we have to create an empty matrix and fill that matrix with the prime numbers starting from the smallest prime number i.e. 2. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. For instance, let's take the number 7. When we divide 7 by any number other than 1 and 7, we get a remainder. For example, dividing 7 by 2 gives a remainder of 1, and dividing 7 by 3 gives a remainder of 1 as well. Therefore, 7 has no divisors other ...
Read MoreJava program to display previous month from GregorianCalendar
The GregorianCalendar class in Java allows us to manipulate dates and times easily. In this example, we will create a GregorianCalendar object and use it to display the current date and the date of the previous month. Problem Statement Write a Java program and create a GregorianCalendar object, display the current date, and then modify this date to show the date of the previous month. Output Current date: Mon Nov 19 18:07:03 UTC 2018 Input Modified date (Previous Month): Fri Oct 19 18:07:03 UTC 2018 Steps to display previous month from GregorianCalendar Below are the steps to display previous ...
Read MoreJava program to find maximum odd number in array using stream and filter
In this section, we are going to write a Java program to find maximum odd number in an Array using Stream and Filter. Odd numbers are the numbers which cannot be divided by 2 or these numbers give remainder as 1 when they are divided by 2. In other terms which can be written in the form of 2n+1. We will find the maximum odd number in the array. Problem Statement Write a program in Java to find maximum odd number in array using stream and filter − Input array = {1, 7, 2, 3, 9, ...
Read MoreJava Program to Save a String to a File
String, the series of characters, used in Java programming enable to save memory consumption and boost the performance. We can save a string to a file using Java program can be initiated in multiple ways and has been introduced in Java version 11. Four parameters can be used to save a string to a file using Java. They are the file path, character sequence, charset, and options. File path and character sequence, these two are the most important and mandatory for this approach to write into a file. This technique encodes the characters as the content, and it returns the ...
Read More