I'm new to Java. I already installed Java, JDK and added it to Path, but when I try to run a command (like "java -version") it just flashes a CMD but doesn't show what I want to see. This happens with every command and doesn't even let me run Java code using an IDE. There is no error message, just a CMD flashing every time I try to run something (it also happens when double click the files like "java", "javac", etc).

CodePudding user response：

How do you run these commands? Try running them from an interactive terminal window. Open it by typing windows key R and then cmd. Then cd into your directory and type your commands there. Alternatively, if your commands are in a .bat file … you may add a pause command at the end.

CodePudding user response：

This is entirely expected as java -version immediately exits after printing the version. This means that if you didn't start it from cmd, PowerShell, or another interactive shell, it opens a window which disappears immediately because the program ended in a fraction of a second.

Start cmd (Command Prompt) or PowerShell (either directly or through Windows Terminal), and run your commands in that interactive shell.