          cal0.set(Calendar.YEAR,0000);         cal0.set(Calendar.HOUR_OF_DAY, 00);           cal0.set(Calendar.MINUTE, 00);                cal0.set(Calendar.SECOND, 00);          Calendar cal0 = Calendar.getInstance();         cal0.set(Calendar.DATE,00);           cal0.set(Calendar.MONTH, 00);          cal0.set(Calendar.YEAR,0000);         cal0.set(Calendar.HOUR_OF_DAY, 00);          cal0.set(Calendar.MINUTE, 00);              cal0.set(Calendar.SECOND, 00);          Calendar cal0 = Calendar.getInstance();         cal0.set(Calendar.DATE,00);           cal0.set(Calendar.MONTH, 00);          cal0.set(Calendar.YEAR,0000);         cal0.set(Calendar.HOUR_OF_DAY, 00);           cal0.set(Calendar.MINUTE, 00);               