Build and run plain text as a Java program [duplicate]

This question already has an answer here:

• Is there an eval() function in Java? 8 answers

I wish to, using Java, compile/build and run a piece of text that is code. When the run button is pressed in eclipse, the last class viewed with a public static void main (String[] args) { } method is compiled and run. Is there any way to run regular text (which is proper Java code) from Java, either with an API or from a library?

NOTE: The text will always follow the following format:

public class NAME {
    public static void main (String[] args) {
        // Java Code
        System.out.println("Java Code Like Usual!");
    }
}