[hardwired]

Code:

import java.text.*;
import java.util.*;

        // Prepare a formatter. See SDF api for options.
        DateFormat df = new SimpleDateFormat("HHmm ddMMMyyyy");
        // Get a Calendar instance.
        Calendar calendar = Calendar.getInstance();
        System.out.println("now = " + df.format(calendar.getTime()));
        // Get the time. Assume time is in 24 hour format.
        String timeStr = "0612";  // 6:12 am
        int hours = Integer.parseInt(timeStr.substring(0,2));
        int minutes = Integer.parseInt(timeStr.substring(2));
        // Set this time into todays calendar date.
        calendar.set(Calendar.HOUR_OF_DAY, hours);
        calendar.set(Calendar.MINUTE, minutes);
        // Check the result.
        System.out.println("timeStamp = " + df.format(calendar.getTime()));