In cases where a new Eclipse is installed or the location of the Java virtual machine binaries has been changed, you may face issue when launching Eclipse. The error would look like.And if you go to the location specified in the error message, there is no such path indeed. And when clicks OK, the program just exits. The issue here is that it tries to find the java.exe binary and launch the program but it failed to locate it and hence exits.To fix this, you first need to ensure you have Java installed on your system no matter it's a JRE or JDK. Then navigate to the Eclipse installation pat...

By default, GoLang doesn't provide the ECB mode cipher for DESede though there is CBC mode provided. In cases we need to encrypt/decrypt data with ECB mode, we need to implement those by ourselves. This mode is frequently used when encrypting/decrypting PIN block which is small block data less than 16 bytes.In this post, we will introduce how to implement the DESede/ECB/NoPadding algorithm in GoLang by using the existing cipher support. Here we will not cover how DESede works in detail, instead we will just cover the logic to make it work.Below is the sample code which can be used to encrypt/d...

In this article, we suggest you to get acquainted with the free editor of web languages - Codelobster IDE. It is presented on the software market for a long time already, and it wins a lot of fans.Codelobster IDE allows you to edit PHP, HTML, CSS and JavaScript files, it highlights the syntax and gives hints for tags, functions and their parameters. This editor easily deals with those files that contain a mixed content.If you insert PHP code in your HTML template, then the editor correctly highlights both HTML tags and PHP functions. The same applies to CSS and JavaScript code, which is contai...

There are 3 components of slice:a) Pointer: Points to the start position of slice in the underlying array;b) length (type is int): the number of the valid elements of the slice;b) capacity (type is int): the total number of slots of the slice.Check the following code:package mainimport ( "fmt" "unsafe")func main() { var s1 []int fmt.Println(unsafe.Sizeof(s1))}The result is 24 on my 64-bit system (The pointer and int both occupy 8 bytes).In the next example, I will use gdb to poke the internals of slice. The code is like this:package mainimport "fmt"func main() { s1 := make([]int, 3, 5) ...

You may notice that there is no max/min function provided to compare the maximum/minimum of two or more integers if you are a GoLang developer with some experience . In other languages, these functions are provided as part of the core lib functions. Have you wondered why? Indeed GoLang provides max/min function in math package, but they are used for comparing float64 data type. The signature of these two functions aremath.Min(float64, float64) float64math.Max(float64, float64) float64The reason why GoLang provides the max/min function for comparing float64 numbers are that floating n...

Straight forward simple fact of the functioning evening: The netting is normally not the same element as appearing the world vast world wide web. Brain damaged, correct?Related to the Included Press Stylebook, the “Net is normally a decentralized, world-wide web 2 . 0 of pcs that may talk with every solo diverse. The Environment Huge World wide web, like announcements, is usually normally a subset of the World wide web.”If the web is not really the internet, then what is it? The community huge internet, in collection with the Associated Press Stylebook, is obviously a “assist...

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When we have run a py3.7 code under py2.x or a py2.x code under 3.x ,if a class do mutli-inheritance from 2 parent and the 2 parents also got inheritance from same parent, the different way to handle inheritance chain between python 2 and 3 will cause some running time bug:Assume we got this sample program inheritTest.py :# Purpose: Test mutli-inheritance different between python2 and 3# Author: Yuancheng Liu# Created: 2019/05/16class A: def getVal(self): print("call A's getVal()") def setVal(self): print("call A's setVal()")class B(A): def getVal(self): ...