Java first date of month

- Java get first date of month
- Java date first day of month
- Java get first date of current month
- Java util date first day of month
- Java get first and last date of month
- Java get date first day of month
- Java date set first day of month
- Java util date get first day of month
- Java check if date is first day of month
- Java calendar set date to first day of month
- Java get first date of next month
- Java date get first and last day of month