How to delete the Windows.old folder from Windows 10
If you recently update your OS to Windows 10, you might notice that you are running out of space. If this is happening it might be because the old version of the Windows is not yet deleted from the disk, it is stored into "Windows.old" folder. And depending on the size of that version, it could be taking a lot of precious space.
How to change DNS settings from command line
The command line tool used to change the DNS settings is netsh which allows you to configure just about any aspect of your network connections in Windows. In order to use the tool the command line needs to be started as Administrator.
How to change computer's IP address from command line
The command line tool used to change the IP address is netsh which allows you to configure just about any aspect of your network connections in Windows. In order to use the tool the command line needs to be started as Administrator
How to split a string into slice in Golang
How to split a string into slice using Golang. For a simple split by a singular character you can use Split() method from strings package. For more complex rules the regexp.Split() method can be used.
How to convert hex to string in Golang
How to convert hex to string in Golang using the DecodeString method from encoding/hex package.
Java Custom Annotations Example
How to create Java Custom Annotation. A simple example of creating Annotations in Java and usage by calling the Reflection API.
