Hello,
My question is that how to run a .class java file in a directory using exec() or ProcessBuilder class. This only works if the .class file is in the same directory (as the java program).
Please help me run a .class file in another directory.
Thanks.
Do you want to spawn an entirely new process? Then you should use
Runtime.getRuntime().exec(new String[] {"java","-cp","/path/to/classes/dir/","com.foo.MyClass"});
If you want something in the same process, you can create a new ClassLoader which knows how to load your .class file. You can then use reflection to get the class object from the classloader, and call its "main" method or something like that. You'll need to use reflection because the class will not be available in the default class loader.
Problem Solved Guys thanks for your replies... :)
Solution I've used
String path = "D:\work"; //Path for my program to execute
String program = "Test"; //My Program name
ProcessBuilder pb = new ProcessBuilder("java","-classpath",path, program);