Compile and Run Java Program from another Java Program [closed]

Answer 1

In my opinion better solution is use of the Java 6 Compiler API. You should look at javax.tools package documentation too.

Answer 2

You should use the Runtime class to do so.

code file --x.java to execute-y.java

Now you should be using the "exec" function of Runtime class.

like this

Process p=Runtime.getRuntime().exec("cmd /c javac y.java && java y.java");

so now the program executes from.a process made by this class.

This method returns a process

so in order to receive the output of this command just executed do like this

p.getOutputStream() // wrap this outputStream in a outputstream wtiter or may be a Printwriter and read it till its not null

and finally output it.

Answer 3

You can add command line arguments by adding another string in ProcessBuilder constructor like ProcessBuilder pb = new ProcessBuilder("java", clazz,"argument");