Java by API/javax.tools/JavaCompiler

CompilationTask: call()

      
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();
  }
}

JavaCompiler: getStandardFileManager(DiagnosticListener<? super JavaFileObject> arg0, Locale arg1, Charset arg2)

      
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();
  }
}

JavaCompiler: getTask(Writer arg0, JavaFileManager arg1, DiagnosticListener<? super JavaFileObject> arg2, Iterable<String> arg3, Iterable<String> arg4, Iterable<? extends JavaFileObject> arg5)

      
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();
  }
}

JavaCompiler: isSupportedOption(String option)

      
import java.util.Set;
import javax.lang.model.SourceVersion;
import javax.tools.JavaCompiler;
import javax.tools.ToolProvider;
public class Main {
  public static void main(String[] args) {
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    Set<SourceVersion> srcVer = compiler.getSourceVersions();
    for (SourceVersion sv : srcVer)
      System.out.println("  " + sv.name());
    int nargs = compiler.isSupportedOption(args[0]);
    if (nargs == -1)
      System.out.println("Option " + args[0] + " is not supported");
    else
      System.out.println("Option " + args[0] + " takes " + nargs + " arguments");
  }
}

Tool: run(InputStream in, OutputStream out, OutputStream err, String... arguments)

      
import java.io.IOException;
import javax.tools.JavaCompiler;
import javax.tools.ToolProvider;
public class Main {
  public static void main(String args[]) throws IOException {
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    int results = compiler.run(null, null, null, "Foo.java");
    System.out.println("Success: " + (results == 0));
  }
}