How can i remove the errors? This is a application in android I am making for generating random text
package clevin.randomck;

import clevin.randomck.R;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

public class Sayings extends Activity 
{
	private Button NewSayings;
	
	public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        TextView mInfoTextView = (TextView) findViewById(R.id.saying); 
        }
	
	private class ButtonclickListener implements View.onclickListener 
	{ 
        int location; 
public ButtonclickListener(int location) 
        { 
             this.location = location; 
        } 

        public void onclick(View view) 
        { 
        	TextView mInfoTextView = null;
			mInfoTextView.setText(R.string.saying1);
            	 }
}
}
How can i remove the errors? This is a application in android I am making for generating random text
===

package clevin.randomck;

import clevin.randomck.R;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

public class Sayings extends Activity 
{
	private Button NewSayings;
	
	public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        TextView mInfoTextView = (TextView) findViewById(R.id.saying); 
        }
	
	private class ButtonclickListener implements View.onclickListener 
	{ 
        int location; 
public ButtonclickListener(int location) 
        { 
             this.location = location; 
        } 

        public void onclick(View view) 
        { 
        	TextView mInfoTextView = null;
			mInfoTextView.setText(R.string.saying1);
            	 }
}
}