Doscommand shell command bat command to execute Java class files and jar files

Doscommand shell command bat command to execute Java class files and jar files

 

1. run Java without a package name ProgramCompile it into helloworld. Class and run it in the directory where the class is located:

 

Java helloworld

 

 

2. Run a Java program with a package name to compile it into helloworld. the class assumes that the package name is com and the class name is helloworld. After compilation, the package is placed in the com folder under the root directory of drive D (actual file path D: \ com \ helloworld. class)

 

Java-cp d: \ com. helloworld

Command Format: full package name of the Java {space}-CP {space} path {space} class

 

3. Run the jar program and package it into a jar file.

 

Java-jar helloworld. Jar