Java by API/javax.tools/ToolProvider

ToolProvider: getSystemJavaCompiler()

      
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.ToolProvider;
import javax.tools.JavaCompiler.rupilationTask;
public class Main {
  public static void main(String[] args) throws Exception {
    String sourceFile = "c:/HelloWorld.Java";
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
    List<File> sourceFileList = new ArrayList<File>();
    sourceFileList.add(new File(sourceFile));
    Iterable<? extends JavaFileObject> compilationUnits = fileManager
        .getJavaFileObjectsFromFiles(sourceFileList);
    CompilationTask task = compiler.getTask(null, fileManager, null, null, null, compilationUnits);
    boolean result = task.call();
    if (result) {
      System.out.println("Compilation was successful");
    } else {
      System.out.println("Compilation failed");
    }
    fileManager.close();
  }
}