Posts by Mitun Kumar Sahu

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Create a Countdown in Java

By Mitun Kumar Sahu

Generally, a backward counting starting from any number to zero in a fixed interval of time(in seconds) is called a countdown. It is mostly used in exams and all to show the time r.... Read More

Check if a value exists in an Array in Java

By Mitun Kumar Sahu

To check if a value exists in an array or not in Java, we can follow 2 methods: Linear search and binary search. To use binary search, the array must be sorted. Time complexity .... Read More

Sort a Java array in ascending and descending order

By Mitun Kumar Sahu

An array is a container containing many data of the same type within a single variable in a contiguous manner. It means all data can be of numbers type, string type, etc. In this .... Read More

How to use a package in Java

By Mitun Kumar Sahu

A Java package is a container of a group of related classes, interfaces, and sub-packages like in your device one folder containing multiple different subfolders and every subfolde.... Read More

Remove array elements that contain only numbers from string array in Java

By Mitun Kumar Sahu

A single alphabet, a single digit, symbol, or space within a single quote is known as a character. It requires 2 bytes of memory because in java character is always represented in .... Read More

Find the longest string in an array of strings using Java

By Mitun Kumar Sahu

Pre-requisite knowledge A single alphabet or a single digit or a single symbol or a single space within a single quote is known as a character. It requires 2 bytes of memory becaus.... Read More

Count number of characters in a string in Java

By Mitun Kumar Sahu

Before understanding our topic, we must first understand the meaning of a character. A single alphabet or a single digit or a single symbol or a single space within a single quote .... Read More

Remove blank rows from Excel file in Java

By Mitun Kumar Sahu

In Excel, if a blank row appears in the wrong place it will prevent Excel from performing basic functions such as sorting, removing, duplicates and subtotals. Learn how to programm.... Read More

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