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“The Performance Trap: “” + i vs String.valueOf(i)“ Most tutorials tell you that String s = “” + i; is the easiest way to convert an integer. While it is the most readable, my benchmarks show it is dangerous inside high-frequency loops. I ran a test converting 10 million integers. Here is what happened: Why?…
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Mastering String to Integer Conversion in Java: A Comprehensive Guide Java convert string to int : Converting strings to integers is a fundamental task in Java programming. Whether you’re processing user input, reading files, or handling API responses, knowing how to convert string to int Java efficiently is crucial. In this guide, we’ll explore multiple…
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Converting PDF to JSON in Java Top 3 ways: A Beginner’s Guide Introduction: In today’s digital era, handling data in various formats is crucial for developers. One common task is converting PDF files into JSON format, PDF to JSON conversion which is widely used for data interchange. In this blog post, we’ll explore how to…
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In this tutorial, we will see how to calculate date of birth from age in jQuery. You can use the below code snippet to create the tool as well. To calculate date of birth from age in jQuery we need to use Jquery and html. Calculating a static Date of Birth (DOB) from a given…
In this blog tutorial, we are going to learn how to convert excel to pdf using java. For converting excel file into java, we are going to use this library called Apache POI. First, we will see the code and then we will go through it to understand it. Dependencies required For converting excel to…
In this blog, we will see how to create a calendar which will show the current date using jcalendar in java swing example. Let’s first look at the Swing component JCalendar JCalendar is a Java Swing component designed for selecting dates. It provides a highly configurable user interface and supports various date selection modes. What…
What is series ? Series program in java, so what is series ? Mathematically, a series is an ordered collection of numbers which have been combined. Each number in the sequence is known as a term within it; when all terms have been added up together, we refer to this total as being all of…
In this blog tutorials, we will see how to implement using java dice roll program. Code Java Dice Roll Program Code Explanation The above program calculates rolling of a specified number of dice with a specified number of sides on each die, and prints out the results of each roll. In above example we have…
In this tutorial, we will see how to read excel file using jxl and write excel using jxl. We are going to use JExcel API for reading and writing file in java. Code: Reading Excel File File contents: package com.slb.core.java; import jxl.Cell; import jxl.Sheet; import jxl.Workbook; import jxl.read.biff.BiffException; import java.io.File; import java.io.IOException; public class ReadExcelFile…
Java util date to String Conversion In this tutorial will see how to convert date object to string objects in java. To convert it, there are few ways to implement it. Using java.util.Date and Using java 8 time and date APIs. Converting a java.util.Date object into a formatted String representation is a core task in…