초보개발자입니다.
간단한 에러인데 해결 못하고 있습니다.
왜 에러가 나는지 알려주세요. 해결방법도 알려주시면 감사해요..

package com.xxx;

import android.app.Activity;
import android.content.*;
import android.content.res.*;
import android.net.*;
import android.os.Bundle;
import android.view.*;
import android.view.View.*;
import android.widget.*;

public class xxx extends Activity {
    /** Called when the activity is first created. */
 ImageView mainimage;
 String sStart;
 int screenW;
 int screenH;

 @Override
 public void onConfigurationChanged(Configuration newConfig) {
   super.onConfigurationChanged(newConfig);
   setContentView(R.layout.no1);
 }
 
 public int getLcdSIzeWidth()
 {
     return ((android.view.WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getWidth();
 }
 public int getLcdSIzeHeight()
 {
     return ((android.view.WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getHeight();
 )} --------------------------■ 이부분 에러(에러내용 : Multiple markers at this line
                                                                                    - Syntax error on token ")", delete this token
                                                                                    - Syntax error, insert "}" to complete ClassBody)
 

 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.no1);
       
  imgbtn.setOnClickListener(new View.OnClickListener() {
   public void onClick(View v) {
       
        ImageButton image_button01 = (ImageButton)findViewById(R.id.Button01);
        ImageButton image_button02 = (ImageButton)findViewById(R.id.Button02);
        ImageButton image_button03 = (ImageButton)findViewById(R.id.Button03);
        ImageButton image_button04 = (ImageButton)findViewById(R.id.Button04);
        ImageButton image_button05 = (ImageButton)findViewById(R.id.Button05);
        ImageButton image_button06 = (ImageButton)findViewById(R.id.Button06);
        ImageButton infoButton = (ImageButton)findViewById(R.id.infoButton);
        ImageButton personButton = (ImageButton)findViewById(R.id.personButton);
       
        findViewById(R.id.Button01).setOnClickListener(mClickListener);
        findViewById(R.id.Button02).setOnClickListener(mClickListener);
        findViewById(R.id.Button03).setOnClickListener(mClickListener);
        findViewById(R.id.Button04).setOnClickListener(mClickListener);
        findViewById(R.id.Button05).setOnClickListener(mClickListener);
        findViewById(R.id.Button06).setOnClickListener(mClickListener);
        findViewById(R.id.infoButton).setOnClickListener(mClickListener);
        findViewById(R.id.personButton).setOnClickListener(mClickListener);

     Button.OnClickListener mClickListener = new View.OnClickListener() {
      public void onClick(View v) {
       Intent intent;
       switch (v.getId()) {
       case R.id.Button01:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       case R.id.Button02:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       case R.id.Button03:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       case R.id.Button04:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       case R.id.Button05:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       case R.id.Button06:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       case R.id.infoButton:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       case R.id.personButton:
        intent = new Intent(Intent.ACTION_VIEW,
          Uri.parse("xxx"));
        startActivity(intent);
        break;
       
        View buttonMain = null;
  buttonMain.setOnClickListener((OnClickListener) this);
    }

    public void onClick(View src) {
     Intent i = new Intent(); 
  i = new Intent(this, no1main.class);
     i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
     startActivity(i);
     finish();
    }--------------------------■ 이부분 에러
(에러내용)
Multiple markers at this line
 - Syntax error, insert "}" to complete MethodBody
 - Syntax error, insert "}" to complete ClassBody
 - Syntax error, insert ")" to complete Expression
 - Syntax error, insert ";" to complete
  LocalVariableDeclarationStatement
 - Syntax error, insert ";" to complete Statement