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Execution failed for task ‘:compileJava’. > invalid source release: 11

Akash Mittal
October 6, 2022

To resolve Execution failed for task ‘:compileJava’. > invalid source release:11 error, we need to check if gradle is referencing the correct version of java. Solution 1. Set JDK version…

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K Lists In Java – Code Example

Teresia Wachira
August 30, 2022

Introduction K-list method displays the entries in the local credentials cache and key table in the command line of the command line server. Let’s Dive In; The klist method displays…

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E Lists In Java – Code Example

Teresia Wachira
September 5, 2022

Introduction E lists are better referred to as Interface List <E> where E is the type of elements in this list. Classes that implement the Interface List <E> include: AbstractList,…

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x = x * y / z is not equal to x *= y / z for integers – Code Example

Akash Mittal
September 5, 2022

In this article we will understand why x=x*y/z is not equal to x*=y/z if variables are integers using java code example. Reason Let’s understand through mathematics – Suppose, x =…

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Java

Break text file into columns Java

Teresia Wachira
September 5, 2022

Introduction To break text file into columns in Java you can use the split() method. There are several methods to get there but we suggest either the string.split() method, StringTokenizer…

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Create empty array in java – Code Example

Akash Mittal
August 30, 2022

To create an empty array in java, you can use = {} syntax or = new int[0]. But an empty array is useless because it can’t hold any value. If…

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Tellraw Minecraft Color Codes Bedrock & Java – Code Example

Akash Mittal
August 30, 2022

To generate a colorful text in minecraft using tellraw commands in Bedrock and Java, we are providing you the code. We will also list major colors with their chat code,…

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Tellraw Generator Editor Minecraft Bedrock & Java – Code Example

Akash Mittal
August 30, 2022

Get code for tellraw generator editor for Minecraft in Bedrock and Java. Get code for java version 1.15, 1,16+ and bedrock edition 1.9+. Code Example – For Bedrock – For…

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Check if String contains number in Java

Akash Mittal
September 5, 2022

To check if string contains number in Java, you can either loop over each character of string and check if it’s a digit or you can use regex. Introduction There…

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java.lang.NullPointerException

Akash Mittal
September 5, 2022

Java throws the exception java.lang.NullPointerException, when you declare an object but do not instantiate it and yet use it for calling a class method or setting / getting variables. Consider…

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‘javac’ is not recognized as an internal or external command, operable program or batch file

Akash Mittal
March 1, 2021

Java throws the error, ‘javac’ is not recognized as an internal or external command, operable program or batch file, if the path of JDK is not set in environment variable.…

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Java SimpleDateFormat – SSSXXX

Akash Mittal
September 4, 2022

The Java SimpleDateFormat class can represent many date formats including SSSXXX. Each letter in the date can signify date, time, timezone or some other things. SSSXXX represents milliseconds and timezone.…

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How to compare chars in Java?

Akash Mittal
September 5, 2022

If you are wondering how to compare chars in java, then this article is for you. There are various ways to compare characters in Java language. We can either define…

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How to clear Java cache?

Akash Mittal
February 8, 2021

You should know how to clear java cache because temporary java files can impact the browser’s performance as well as show outdated content. By clearing the cache, we can force…

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How to end program in Java?

Akash Mittal
February 8, 2021

In order to know how to end program in Java, you should be aware that calling return with in a function doesn’t end it. You need to use System.exit(0) command…

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