Android Open Source - Parcial2 Main Activity

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License

The source code is released under:

CC0 1.0 Universal Statement of Purpose The laws of most jurisdictions throughout the world automatically confer exclusive Copyright and Related Rights (defined below) upon the creator and subsequent...

Java Source Code

package com.ness.parcial2;
/*from  www .j a  v  a 2 s .c  o m*/
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
  CheckBox c1, c2, c3, c4;
  Button bc, bs;
  EditText n1, n2;
  Intent i;
  double num1, num2;
  String a1, a2;
  boolean ve;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        c1 = (CheckBox) findViewById(R.id.checkBox1);
        c2 = (CheckBox) findViewById(R.id.checkBox2);
        c3 = (CheckBox) findViewById(R.id.checkBox3);
        c4 = (CheckBox) findViewById(R.id.checkBox4);
        
        bc = (Button) findViewById(R.id.button1);
        bs = (Button) findViewById(R.id.button2);
        
        n1 = (EditText) findViewById(R.id.editText1);
        n2 = (EditText) findViewById(R.id.editText2);
    }

    public void calcular(View v){
      
      a1= n1.getText().toString();
      a2 = n2.getText().toString();
      if(a1.equals("") | a2.equals("")){
        mensaje("Debe ingresar dos valores para poder usar estas operaciones", 2);
      } else{
        
        i = new Intent(this, Mostrar.class);
        num1 = Double.parseDouble(a1);
        num2 = Double.parseDouble(a2);
        if(c1.isChecked()){
          ve =true;
          i.putExtra("suma", sumar(num1, num2));
        }else {
          i.putExtra("suma", 0);
        }
        
          if(c2.isChecked()){
            ve =true;
          i.putExtra("resta", resta(num1, num2));
      }else {
      i.putExtra("resta", 0);
      }
          
          if(c3.isChecked()){
            ve =true;
              i.putExtra("multi", multi(num1, num2));
        }else {
          i.putExtra("multi", 0);
        }
          
          if(c4.isChecked()){
            ve =true;
              i.putExtra("divi", divi(num1, num2));
          }else {
          i.putExtra("divi", 0);
          }
          
          if(ve == true){
            startActivity(i);
          }else{
            mensaje("tiene que seleccionar una opcion",1);
          }
          
      }
      
    }
    
    private double divi(double num12, double num22) {
    // TODO Auto-generated method stub
    return num12/ num22;
  }

  private double multi(double num12, double num22) {
    // TODO Auto-generated method stub
    return num12*num22;
  }

  private double resta(double num12, double num22) {
    // TODO Auto-generated method stub
    return num12-num22;
  }

    private double sumar(double num12, double num22) {
    // TODO Auto-generated method stub
    return num12+num22;
  }
    private void mensaje(String a, int arg){
      if(arg >1){
        Toast.makeText(this, a, Toast.LENGTH_LONG).show();
      }else {
        Toast.makeText(this, a, Toast.LENGTH_SHORT).show();
      }
      
    }
  public void salir(View v){
      this.finish();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    
}

Java Source Code List

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