Thread: how to call string from a different class

I'm making an android application. in IncomingSMS.java there's this string called the senderNum. senderNum is generated when a message is received and senderNum string is the sender of the message. i want to call senderNum to another class. it is said that i need to return the value of the string. but i don't know how. Shown below are part of the codes.

IncomingSMS.java

public class IncomingSms extends BroadcastReceiver {
 
 
	private static final byte TARGET_PIN_2 = 0x2;
	private String message = "";
	private static boolean ledstate = false;
 
	// Get the object of SmsManager
	final SmsManager sms = SmsManager.getDefault();
 
	public void onReceive(Context context, Intent intent) {
 
		// Retrieves a map of extended data from the intent.
		final Bundle bundle = intent.getExtras();
 
		try {
 
			if (bundle != null) {
 
				final Object[] pdusObj = (Object[]) bundle.get("pdus");
 
				for (int i = 0; i < pdusObj.length; i++) {
 
					SmsMessage currentMessage = SmsMessage
							.createFromPdu((byte[]) pdusObj[i]);
					String phoneNumber = currentMessage
							.getDisplayOriginatingAddress();
 
					String senderNum = phoneNumber;
					message = currentMessage.getDisplayMessageBody();
 
					Log.i("SmsReceiver", "senderNum: " + senderNum
							+ "; message: " + message);
 
					int duration = Toast.LENGTH_LONG;
		            Toast toast = Toast.makeText(context, "senderNum: "+ senderNum + ", message: " + message, duration);
		            toast.show();
		         // call led here
		            toggleLed();
 
				}
 
				// end for loop
			} // bundle is null
		} catch (Exception e) {
			Log.e("SmsReceiver", "Exception smsReceiver" + e);
 
		}
	}

below is the class where i want to call the senderNum string

MainActivity.java

public void sendLOCKED() 
		{
			SmsManager smsManager = SmsManager.getDefault();
                        // i want to call the senderNum below
			smsManager.sendTextMessage("senderNum", null, "LOCKED", null, null);
		}
	public void sendUNLOCKED() 
		{
			SmsManager smsManager = SmsManager.getDefault();
                         // i want to call the senderNum below
			smsManager.sendTextMessage("senderNum", null, "UNLOCKED", null, null);
		}

'context' is your hook to MainActivity from the IncomingSMS class. Create a private member variable and a setter in MainActivity:

private String _senderNum;
 
public void setSenderNum(String senderNum) {
    _senderNum = senderNum;
}

then call the setter using the context from IncomingSMS:

context.setSenderNum(senderNum);