need help with error in app

[HIGH]
package com.innovativesolutions.cardscorekeeper;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;

public class MainActivity extends Activity {

int scorea, scoreb, takea[], takeb[], bida[], bidb[], baga, bagb, iii;
EditText bid1aa, bid1bb, actuala, actualb, totala, totalb;
Button total;
CheckBox nila, nilb, gnila, gnilb;


@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iii = 0;
baga = 0;
bagb = 0;
scorea = 0;
scoreb = 0;
total = (Button) findViewById(R.id.button1);
bid1aa = (EditText) findViewById(R.id.a1bid);
bid1bb = (EditText) findViewById(R.id.b1bid);
actuala = (EditText) findViewById(R.id.atake);
actualb = (EditText) findViewById(R.id.btake);
totala = (EditText) findViewById(R.id.atotal);
totalb = (EditText) findViewById(R.id.btotal);
nila = (CheckBox) findViewById(R.id.anil);
nilb = (CheckBox) findViewById(R.id.bnil);
gnila = (CheckBox) findViewById(R.id.agnil);
gnilb = (CheckBox) findViewById(R.id.bgnil);
total.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {
// TODO Auto-generated method stub
bida[iii]=Integer.parseInt(bid1aa.getText().toString());
bidb[iii]=Integer.parseInt(bid1bb.getText().toString());
takea[iii]=Integer.parseInt(actuala.getText().toString());
takeb[iii]=Integer.parseInt(actualb.getText().toString());


if (nila.isChecked()){
if (gnila.isChecked() && takea[iii]>=bida[iii]){
baga = takea[iii]-bida[iii]+baga;
scorea = scorea + 100 + (bida[iii]*10);
}
else {scorea = scorea - 100 - (bida[iii]*10);}
} else {
if (takea[iii]>=bida[iii]){
baga = takea[iii]-bida[iii]+baga;
scorea = scorea + (bida[iii]*10);
} else {scorea = scorea - (bida[iii]*10);}

}

if (nilb.isChecked()){
if (gnilb.isChecked() && takeb[iii]>=bidb[iii]){
bagb = takeb[iii]-bidb[iii]+bagb;
scoreb = scoreb + 100 + (bidb[iii]*10);
} else {scoreb = scoreb - 100 - (bidb[iii]*10);}
} else {
if (takeb[iii]>=bidb[iii]){
bagb = takeb[iii]-bidb[iii]+bagb;
scoreb = scoreb + (bidb[iii]*10);
} else {scoreb = scoreb - (bidb[iii]*10);}

}


if (baga>=10){
scorea = scorea - 100;
baga = 0;
}
if (bagb>=10){
scoreb = scoreb - 100;
bagb = 0;
}

iii++;
totala.setText(scorea);
totalb.setText(scoreb);

}
});


}}




[/HIGH]

*******************and here is my xml file

[HIGH]
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<RadioGroup
android:id="@+id/radioGroup1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >

<RadioButton
android:id="@+id/radio0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Spades" />

<RadioButton
android:id="@+id/radio1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Rook" />
</RadioGroup>

<EditText
android:id="@+id/atotal"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginLeft="50dp"
android:ems="10"
android:text="13" >

<requestFocus />
</EditText>

<EditText
android:id="@+id/btotal"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginLeft="50dp"
android:ems="10"
android:inputType="number"
android:text="13" />

<EditText
android:id="@+id/editText3"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/radioGroup1"
android:layout_marginLeft="70dp"
android:ems="10"
android:text="Team A"
android:textSize="20dp" />

<EditText
android:id="@+id/editText4"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_below="@+id/radioGroup1"
android:layout_marginLeft="50dp"
android:layout_toRightOf="@+id/editText3"
android:ems="10"
android:text="Team B"
android:textSize="20dp" />

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginLeft="75dp"
android:layout_marginTop="20dp"
android:layout_toRightOf="@+id/radioGroup1"
android:text="Add Round" />

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/editText3"
android:text="Bid"
android:textSize="20dp" />

<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/textView1"
android:text="Taken"
android:textSize="20dp" />

<EditText
android:id="@+id/a1bid"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView1"
android:layout_toRightOf="@+id/textView2"
android:ems="10"
android:inputType="number"
android:text="0"
android:textSize="20dp" />

<EditText
android:id="@+id/b1bid"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_above="@+id/textView2"
android:layout_marginLeft="50dp"
android:layout_toRightOf="@+id/editText3"
android:ems="10"
android:inputType="number"
android:text="0"
android:textSize="20dp" />

<EditText
android:id="@+id/btake"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/editText4"
android:layout_alignRight="@+id/b1bid"
android:layout_alignTop="@+id/textView2"
android:ems="10"
android:inputType="number"
android:text="0"
android:textSize="20dp" />

<CheckBox
android:id="@+id/anil"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/a1bid"
android:layout_alignBottom="@+id/a1bid"
android:layout_toRightOf="@+id/a1bid"
android:checked="false"
android:text="Nil?" />

<CheckBox
android:id="@+id/bnil"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/b1bid"
android:layout_alignBottom="@+id/b1bid"
android:layout_alignParentRight="true"
android:text="Nil?" />

<CheckBox
android:id="@+id/bgnil"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/btake"
android:layout_alignBottom="@+id/btake"
android:layout_alignParentRight="true"
android:text="Nil?" />

<EditText
android:id="@+id/atake"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/editText3"
android:layout_below="@+id/a1bid"
android:ems="10"
android:inputType="number"
android:text="0"
android:textSize="20dp" />

<CheckBox
android:id="@+id/agnil"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/atake"
android:layout_alignBottom="@+id/atake"
android:layout_centerHorizontal="true"
android:checked="false"
android:text="Nil?" />

</RelativeLayout>

[/HIGH]


For some reason I keep getting a force close error and I am not really good at using logcat yet so any help would be appreciated. This is the start a app i am making to keep score for spades.