Java Android Random Location Generator/Viewer SRC

package com.mycompany.WBV2;
import android.content.Context;
import android.content.Intent;
import android.app.Activity;
import java.util.Random;
import java.util.*;
import android.app.*;
import android.os.*;
import android.content.*;
import android.widget.Button;
import android.net.Uri;
import android.net.*;
import java.net.*;
import android.view.*;
import android.view.animation.*;
import java.nio.*;

public class MainActivity extends Activity
{
final Button b=(Button)findViewById(R.id.hello_worlld);
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setTitle("Location Generator/Viewer 2.0");
final Button b1=(Button)findViewById(R.id.hello_worlld);
b1.setOnClickListener(new View.OnClickListener(){
public void onClick(View v)
{
Random R=new Random();
int dub=R.nextInt(999);
int dub1=R.nextInt(999);
int dub2=R.nextInt(999);
int dub3=R.nextInt(999);
Intent I1= new Intent(Intent.ACTION_VIEW,Uri.parse(("geo:"+dub+"."+dub1+","+dub2+"."+dub3)));
startActivity(I1);//https://www.google.com/maps/@34.0625899,-117.5636834,1692m/data=!3m1!1e3
}

});

}
}