Computengine.com

A technology blog

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Java Code to Partition an Array and return the maximized Sum of Pairs

Java Code to Partition an Array and return the maximized Sum of Pairs

Ideally, the value can be maximum only if we are taking bigger numbers, but we have to take minimum values from a pair of Integers. So, to w

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Java code to Split a String into Maximum number of Balanced Strings

Java code to Split a String into Maximum number of Balanced Strings

We are given a string which contains only characters 'R' and 'L'. A balanced string is one which has equal number of 'R' and 'L' characters.

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Java code to find Count of Pairs in Integer Array with Absolute Difference K

Java code to find Count of Pairs in Integer Array with Absolute Difference K

Solution to Leetcode problem : Count Number of Pairs With Absolute Difference K

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Selenium UI Automation - Most Comprehensive Online Automation Practice Page

Selenium UI Automation - Most Comprehensive Online Automation Practice Page

Selenium is a widely used Automation library used for UI automation. We are presenting a single page which contains multiple UI elements whi

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2 ways to convert a Number to Binary (Custom function included)

2 ways to convert a Number to Binary (Custom function included)

In order to convert an Integer to Binary, the method used is very simple. Since Binary Number system is based on 2 characters (0 and 1), we

[computengine]

3 Ways to find if a String contains a substring using Java (Bonus: Ignore spaces)

3 Ways to find if a String contains a substring using Java (Bonus: Ignore spaces)

So, you have a substring (or a word) which you have to find if its part of a sentence or not. We can do this in multiple ways in Java, depen

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6 ways to Concatenate Strings in Java (Bonus: Choose concatenation character)

6 ways to Concatenate Strings in Java (Bonus: Choose concatenation character)

We need to deal with Strings in real time projects, and concatenation of Strings is a common and important functionality. There are multiple

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4 ways to compare Strings in Java (Bonus: Lexicographical Compare)

4 ways to compare Strings in Java (Bonus: Lexicographical Compare)

Comparing two Strings is a very common project requirement. It can be utilized in multiple ways. The comparison can be done to verify that

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4 ways to add New Line Character to a String in Java

4 ways to add New Line Character to a String in Java

Adding a newline character between two strings in order to separate them, or create a paragraph is one of the most common requirements. Let'

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Find Day of the week of any date using Java code

Find Day of the week of any date using Java code

If we have a date, and need to find which day of the week it was instantly, that would a really useful function, isn't it?

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Create a File logging Utility using Java Code

Create a File logging Utility using Java Code

We'll try to cover the following utilities which can form the base of a logging tool: 1. File logging by passing the value and the file pat

We'll try to cover the following utilities which can form the base of a logging tool:

1. File logging by passing the value and the file path.

2. File logging by passing the value and setting the log path in a properties file.

3. Clear the log file

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Find the file size using Java code (Bytes, KB, MB and GB)

Find the file size using Java code (Bytes, KB, MB and GB)

We'll utilize an inbuilt function which returns the size in bytes, and we'll write our own functions to find out file sizes in KB, MB and GB

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Find the HCF of 2 numbers using Java code

Find the HCF of 2 numbers using Java code

We will find the HCF of two numbers. We are simply replicating the Division method of finding HCF and making our code follow the exact same

What will be utilized in this logic:

1. While loop to iterate till we arrive at the solution

2. % Operator to find the remainder

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Find the Longest Running Streak of a Number in an Array

Find the Longest Streak of 1's in a Binary Array using Java Code

You have been given an Integer Array which contains only 1s and 0s, and asked to find the longest running streak of 0 or 1 in the array. Sou

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JavaScript Input Field Validation Function

JavaScript Input Field Validation Function with Input field color highlight and Error Message Display

Today, we'll write a small JavaScript function that we can include in our website and which does the input validation very quickly and effic

1. Validate the Input field in a form

2. Highlight the field having issues with a background color

3. Update the error message on the webpage

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Java Program to Read a Properties file and return a Property Value

Java Program to Read a Properties file and return a Property Value

Properties file in Java are used to store configurations, data or settings for a project. They have been utilized as Object Repositories for

This Tutorial will cover the below topics:

1. Create Properties file in a Java Project

2. Set Properties in the file

3. Read the Properties file using Java code and return the value

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Tutorial to Build a Utility using JavaScript to find and display IP Address

What is my IP Address - How to find your IP address on Local Network using Command Prompt, and External Network using JavaScript Code

Tutorial to Build a Utility using JavaScript to find and display IP Address: 1. Find Internal IP address 2. Find External IP address 3. Step

Tutorial to Build a Utility using JavaScript to find and display IP Address:

1. Find Internal IP address

2. Find External IP address

3. Step by Step tutorial to find IP address using JavaScript (build your own utility)