diff --git a/TracerOnJavassist/src/tracer/Tracer.java b/TracerOnJavassist/src/tracer/Tracer.java
index 1305c2c..b8858c6 100644
--- a/TracerOnJavassist/src/tracer/Tracer.java
+++ b/TracerOnJavassist/src/tracer/Tracer.java
@@ -40,13 +40,19 @@
 	private static CodeConverter conv = new CodeConverter();
 
 	public static void main(String[] args) {
-		outputStatementsGenerator = new OutputStatementsGenerator(new JSONTraceGenerator());	// �����ŏo�̓t�H�[�}�b�g���w�肷��
-		String packageName = "worstCase"; // �w�肵���p�b�P�[�W�����̑S�N���X�ɃC���X�g�D�������e�[�V�������s��
-		ClassLoader loader = Thread.currentThread().getContextClassLoader();
-		URL resource = loader.getResource(packageName);
-		
+		initialize(new OutputStatementsGenerator(new JSONTraceGenerator()));		// �����ŏo�̓t�H�[�}�b�g���w�肷��		
+		packageInstrumentation("worstCase");										// �w�肵���p�b�P�[�W�����̑S�N���X�ɃC���X�g�D�������e�[�V�������s��
+	}
+
+	/**
+	 * �o�͕���������w�肵�ăC���X�g�D�������e�[�V�����̏��������s��
+	 * 
+	 * @param outputStatementsGenerator �o�͕�������(�o�̓t�H�[�}�b�g���w��ł���)
+	 */
+	public static void initialize(OutputStatementsGenerator outputStatementsGenerator) {
 		// �z��ւ̃A�N�Z�X�̌��o
-		if (!(outputStatementsGenerator.getGenerator() instanceof PlainTextTraceGenerator)) {
+		Tracer.outputStatementsGenerator = outputStatementsGenerator;	// �����ŏo�̓t�H�[�}�b�g���w�肷��
+		if (!(Tracer.outputStatementsGenerator.getGenerator() instanceof PlainTextTraceGenerator)) {
 			// 
 			ClassPool cp = ClassPool.getDefault();
 			CtClass cc;
@@ -57,7 +63,24 @@
 				e1.printStackTrace();
 			}
 		}
-		
+	}
+	
+	/**
+	 * �������ς݂�?
+	 * @return �������ς�: true, ����ȊO: false
+	 */
+	public static boolean isInitialized() {
+		return (outputStatementsGenerator != null);
+	}
+
+	/**
+	 * �w�肵���p�b�P�[�W���̃N���X�ɃC���X�g�D�������e�[�V�������s��
+	 * 
+	 * @param packageName �p�b�P�[�W��
+	 */
+	public static void packageInstrumentation(String packageName) {
+		ClassLoader loader = Thread.currentThread().getContextClassLoader();
+		URL resource = loader.getResource(packageName);
 		File dir;
 		try {
 			dir = new File(URLDecoder.decode(resource.getPath(), "UTF-8"));
@@ -73,31 +96,37 @@
 	}
 
 	/**
-	 * �w�肵���N���X�ɃC���X�g�D�������e�[�V�������s���i���j
+	 * �w�肵���N���X�ɃC���X�g�D�������e�[�V�������s��
 	 * 
-	 * @param className
-	 *            �N���X��
+	 * @param className �N���X��
 	 */
-	private static void classInstrumentation(String className) {
+	public static void classInstrumentation(String className) {
 		ClassPool cp = ClassPool.getDefault();
 		CtClass cc;
 		try {
 			cc = cp.get(className);
-			for (final CtConstructor c : cc.getDeclaredConstructors()) {
-				methodInstrumentation(cc, c);				
-			}
-			for (final CtMethod m : cc.getDeclaredMethods()) {
-				methodInstrumentation(cc, m);
-			}
-			cc.instrument(conv);
-			cc.writeFile("bin");
+			classInstrumentation(cc);
 		} catch (NotFoundException | BadBytecode | CannotCompileException | IOException e) {
 			e.printStackTrace();
-			// } catch (CannotCompileException | IOException e) {
-			// e.printStackTrace();
 		}
 	}
 
+	/**
+	 * �w�肵���N���X�ɃC���X�g�D�������e�[�V�������s��
+	 * 
+	 * @param cc Javassist�̃N���X�I�u�W�F�N�g
+	 */
+	public static void classInstrumentation(CtClass cc) throws BadBytecode, NotFoundException, CannotCompileException, IOException {
+		for (final CtConstructor c : cc.getDeclaredConstructors()) {
+			methodInstrumentation(cc, c);				
+		}
+		for (final CtMethod m : cc.getDeclaredMethods()) {
+			methodInstrumentation(cc, m);
+		}
+		cc.instrument(conv);
+		cc.writeFile("bin");
+	}
+
 	private static void methodInstrumentation(final CtClass cc, final CtBehavior m) throws BadBytecode, NotFoundException, CannotCompileException {
 		// ���\�b�h�{�̓��̊e�u���b�N�̍ŏ��ɏo�͕���}������(�o�͕��̑}���Ńu���b�N�������Ă��܂��̂ŁA��ɑ}�����Ă���)
 		Block[] blocks = null;