PROGRAM 14:
XML CODE:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 android:padding="16dp">

 <EditText
 android:id="@+id/emailto"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:hint="Recipient Email"
 android:inputType="textEmailAddress" />


<EditText
 android:id="@+id/emailsubject"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:hint="Subject"
 android:inputType="text" />


<EditText
 android:id="@+id/emailmessage"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:hint="Message"
 android:inputType="textMultiLine"
 android:minLines="3" />


<Button
 android:id="@+id/sendemailbutton"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="Send Email" />
</LinearLayout
>
JAVA CODE:
package com.example.prgm14;
import android.support.v7.app.AppCompatActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
 private EditText emailTo, emailSubject, emailMessage
;
 private Button sendEmailButton
;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 emailTo = findViewById(R.id.emailto);
 emailSubject = findViewById(R.id.emailsubject);
 emailMessage = findViewById(R.id.emailmessage);
 sendEmailButton = findViewById(R.id.sendemailbutton);
 sendEmailButton.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 sendEmail();

}
 });

}
 private void sendEmail() {
 String to = emailTo.getText().toString();
 String subject = emailSubject.getText().toString();
 String message = emailMessage.getText().toString();
 Intent emailIntent = new Intent(Intent.ACTION_SEND);
 emailIntent.setType("message/rfc822");
 emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{to});
 emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
 emailIntent.putExtra(Intent.EXTRA_TEXT, message);
 try
{
 startActivity(Intent.createChooser(emailIntent, "Send email using"));
 } catch (android.content.ActivityNotFoundException ex) {
 Toast.makeText
(this, "No email client installed.",
Toast.LENGTH_SHORT).show();

}

}
}