android widget组建

package com.android.TinySMS;import android.app.Activity;import android.os.Bundle;import android.view.View.OnClickListener;import android.widget.Button;public class buttonText extends Activity{public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main2); }private void find_and_modify_button(){ Button button=(Button) findViewById(R.layout.main2); button.setOnClickListener(button_listener); } private Button.OnClickListener button_listener =new Button.OnClickListener(){ public void onClick(View v){ setTitle("被点了啊"); } }} eclipse报错。最后个}红色！