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PROGRAMA 7Guerrero Serrano Aylin Miroslawa
Posadas Pérez Yanori Marlene
Olvera Olmos Adrián
package com.example.programa7;
import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.widget.EditText;import android.widget.TextView;
public class MainActivity extends Activity {
@Overrideprotected void onCreate(Bundle
savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);
}
@Overridepublic 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;
}
public void calcular(View v){EditText
n=(EditText)findViewById(R.id.editText1);
TextView r=(TextView)findViewById(R.id.textView3);
double d=Double.parseDouble(n.getText().toString());
if(d<0){r.setText("Negativo");
}r.setText("Positivo");
}
}