Android code to add two numbers

[deepika deepi]

hi,

i am an beginner in android. i want to add two numbers in android, working on eclipse and i am getting an error in the code

error:
txtbox1= (EditText) findViewById(R.id.txtbox1);
button1 = (Button) findViewById(R.id.button1);
tv = (TextView) findViewById(R.id.lbl1);
txtbox2= (EditText) findViewById(R.id.txtbox2);

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


public class fit extends Activity {
    Button button1;
    EditText txtbox1,txtbox2;
    TextView tv;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        txtbox1= (EditText) findViewById(R.id.txtbox1);
        button1 = (Button) findViewById(R.id.button1);
        tv = (TextView) findViewById(R.id.lbl1);
        txtbox2= (EditText) findViewById(R.id.txtbox2);
        button1.setOnClickListener(new clicker());
    }
    class clicker implements Button.OnClickListener
    {
        public void onClick(View v)
        {
            String a,b;
            Integer vis;
            a = txtbox1.getText().toString();
            b = txtbox2.getText().toString();
            vis = Integer.parseInt(a)+Integer.parseInt(b);
            tv.setText(vis.toString());
        }
    }
}

can we correct the error and make the code run?

[Tim Moores]

Are you going to tell us what the error is, or are we supposed to guess? Is it that "R.id" does not exist? Maybe this helps: http://stackoverflow.com/questions/3721950/android-helloviews-spinner-tutorial-r-id-and-r-array-can-not-be-resolved

[Martin Vashko]

Deepika, I've added code tags and indentation for you this time. You can do so yourself by using the Code button when writing your post.

[Maneesh Godbole]

Android questions are best asked on the android forum. In future please do take out time to CarefullyChooseOneForum
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