java -cp/javac doesn't work in cmd prompt-CodePudding

I am trying to run mo program by cmd :

first i try to compile my Main.java by "javac Main.java", after that i have no msg in cmd
second i run "java -cp Main"(Main.class with byte code), after that i have no output in cmd I tryed reinstall my JDK, but it doesn't help. also when i run "java -version" in cmd i have no output. and no msg.I has set my JAVA_HOME path into JDK dir and set him into my PATH "%JAVA_HOME\bin". what i cant do wrong? Pls help

CodePudding user response：

Your path environment variable for java is not set correctly. You could try to run the command where java and most likely it will return a path that is not correct (or nothing). Find the correct path where your JDK is installed and run this command to add it to the path vars in cmd:

set PATH=%PATH%;C:\your\path\here\

An example for my system and path would be:

set PATH=%PATH%;C:\Program Files\Java\jdk-11\bin

After setting this path variable, close and reopen your cmd window and try running java -version again. If it still doesn't show anything then you have to manually change your path variables and remove the old path.

CodePudding user response：

Make sure that you have correctly set the path to the directory in which you have your java installed. For instance mine is settled in D:\Program files\java\jdk-11.0.2

Subsequently I set JAVA_HOME as

Then you open path variable and new entry as following:

Then save all changes. Close all running cmd, start it again and then retry java -version