import java.io.IOException;

import java.util.Arrays;

import javax.tools.DiagnosticCollector;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileObject;

import javax.tools.StandardJavaFileManager;

import javax.tools.ToolProvider;

public class DiagnosticCollectorCompile {

  public static void main(String args[]) throws IOException {

    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

    DiagnosticCollector diagnostics = new DiagnosticCollector();

    StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null, null);

    Iterable compilationUnits = fileManager

        .getJavaFileObjectsFromStrings(Arrays.asList("Foo.java"));

    JavaCompiler.CompilationTask task = compiler.getTask(null, fileManager, diagnostics, null,

        null, compilationUnits);

    boolean success = task.call();

    fileManager.close();

    System.out.println("Success: " + success);

  }

}

// File: MyClass.java

class MyClass {

  public static void main(String args[]) {

    System.out.println("Hello, World");

  }

}