Android-dev.it Community

package com.ilseric.rettangolo;

import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.*;
import android.os.Bundle;

public class rettangolo extends Activity {
    /** Called when the activity is first created. */
   public Button calcola = new Button(this);
   public EditText base = new EditText(this);
   public EditText altezza = new EditText(this);
   public Double area;
   
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        base.findViewById(R.id.base);
        altezza.findViewById(R.id.altezza);
        calcola.findViewById(R.id.calcola);
        calcola.setOnClickListener(new OnClickListener() {
           public void onClick(View Click)
           {
              area = Double.parseDouble(base.getText().toString());
              area = area * Double.parseDouble(altezza.getText().toString());
              Toast.makeText(getApplicationContext(), area.toString(),Toast.LENGTH_LONG);
           }
        });
    }
   
}