Activity_main.XML File
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Enter First Number"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Enter Second Number"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName" />
<RadioGroup
android:id="@+id/radioChoice"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<RadioButton
android:id="@+id/radioButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ADD" />
<RadioButton
android:id="@+id/radioButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Subtract" />
</RadioGroup>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="SUM" />
</LinearLayout>
MAINACTIVITY.JAVA
package com.example.demo;
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener
{
Button button1;
EditText text1,text2;
RadioButton rb1,rb2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1= (Button) findViewById(R.id.button1);
text1=(EditText) findViewById(R.id.text1);
text2=(EditText) findViewById(R.id.text2);
rb1=(RadioButton)findViewById(R.id.radioButton1);
rb2=(RadioButton)findViewById(R.id.radioButton2);
button1.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public void onClick(View arg0) {
Editable s1 = text1.getText();
Editable s2 = text2.getText();
int ss=0;
if(rb1.isChecked())
{
ss=Integer.parseInt(s1.toString())+Integer.parseInt(s2.toString());
}
if(rb2.isChecked())
{
ss=Integer.parseInt(s1.toString())-Integer.parseInt(s2.toString());
}
String sss=String.valueOf(ss);
Toast msg= Toast.makeText(MainActivity.this, sss,Toast.LENGTH_LONG);
msg.show();
}
}
