JAVA

localdate to date java

// Localdate to Date
Date.from(localdate.atStartOfDay(ZoneId.systemDefault()).toInstant())

java localdate to calendar

// LocalDate to Calendar    
Calendar calendar = Calendar.getInstance();
calendar.setTime(Date.from(localDate.atStartOfDay(ZoneId.systemDefault()).toInstant()));

java convert java.util.Date to LocalDate

Date yourDate = new Date(); // this will be your java.util.Date instance to convert
LocalDate date = yourDate.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();

java convert date to localdate

date.toInstant().atZone(ZoneId.systemDefault()).toLocaldate()