在java中获取当月的第一个日期

尝试

    Calendar c = Calendar.getInstance();   // this takes current date    c.set(Calendar.DAY_OF_MONTH, 1);    System.out.println(c.getTime());       // this returns java.util.Date

更新（自Java
8以来
）：

import java.time.LocalDate;LocalDate todaydate = LocalDate.now();System.out.println("Months first date in yyyy-mm-dd: " +todaydate.withDayOfMonth(1));