Create Yesterday's Date from a Date in the String Format of MM/DD/YYYY : Date « Data Type « Java Tutorial

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;

public class MainClass {

  public static void main(String[] args) throws ParseException {
    SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");
    GregorianCalendar gc = new GregorianCalendar();
    java.util.Date d = sdf.parse("12/12/2003");
    gc.setTime(d);
    System.out.println("Input Date = " + sdf.format(d));
    int dayBefore = gc.get(Calendar.DAY_OF_YEAR);
    gc.roll(Calendar.DAY_OF_YEAR, -1);
    int dayAfter = gc.get(Calendar.DAY_OF_YEAR);
    if(dayAfter > dayBefore) {
        gc.roll(Calendar.YEAR, -1);
    }
    gc.get(Calendar.DATE);
    java.util.Date yesterday = gc.getTime();
    System.out.println("Yesterdays Date = " + sdf.format(yesterday));

  }

}

Input Date = 12/12/2003
Yesterdays Date = 12/11/2003

2.38.Date
	2.38.1.	The java.util.Date Class
	2.38.2.	Show date and time using only Date methods.
	2.38.3.	Obtaining a Date Object From a String
	2.38.4.	Convert from a java.util.Date Object to a java.sql.Date Object
	2.38.5.	Convert a String Date Such as 2003/01/10 into a java.util.Date Object
	2.38.6.	Create Yesterday's Date from a Date in the String Format of MM/DD/YYYY
	2.38.7.	Create a java.util.Date Object from a Year, Month, Day Format
	2.38.8.	Create a java.sql.Time Object from java.util.Date
	2.38.9.	Convert the Current Time to a java.sql.Date Object
	2.38.10.	Convert Date into milliseconds example
	2.38.11.	Create java Date from specific time example
	2.38.12.	Determine the Day of the Week from Today's Date
	2.38.13.	ISO 8601 date parsing utility.
	2.38.14.	Parses a string representing a date by trying a variety of different parsers.
	2.38.15.	Perform date validations