Today Date and Last day of Month

public class GetLastDayOfMonth {   
 
    public static void main(String[] args) {  
 
        Date today = new Date();  
 
        Calendar calendar = Calendar.getInstance();  
        calendar.setTime(today);  
 
        calendar.add(Calendar.MONTH, 1);  
        calendar.set(Calendar.DAY_OF_MONTH, 1);  
        calendar.add(Calendar.DATE, -1);  
 
        Date lastDayOfMonth = calendar.getTime();  
 
        DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");  
        System.out.println("Today            : " + sdf.format(today));  
        System.out.println("Last Day of Month: " + sdf.format(lastDayOfMonth));  
    }   
 
}  

Output:

Today            : 2010-08-03  
Last Day of Month: 2010-08-31