Sorted:

What is the method for printing a space in the C language?

What is the purpose of thumbnails in Java?

How to specify the range for random in Java?

How to achieve sorting and getting the first record in a group in DB2?

How to unmount NFS network file system using umount?

How to install and use Selenium in Linux

What is the usage of regexp in SQL?

What is the usage of multiset in C++?

How to run a virtual machine in Ubuntu using QEMU?

What built-in system monitoring tools does LinuxMint have?