Java程序，通过TemporalAdjusters类将LocalDate调整为每月的第一天
我们首先设置一个日期-
LocalDate localDate = LocalDate.of(2019, Month.APRIL, 10);
现在，将LocalDate调整为每月的第一天-
LocalDate day = localDate.with(TemporalAdjusters.firstDayOfMonth());
示例
import java.time.LocalDate;
import java.time.Month;
import java.time.temporal.TemporalAdjusters;
public class Demo {
public static void main(String[] args) {
LocalDate localDate = LocalDate.of(2019, Month.APRIL, 10);
System.out.println("Current Date = "+localDate);
System.out.println("Current Month = "+localDate.getMonth());
LocalDate day = localDate.with(TemporalAdjusters.firstDayOfMonth());
System.out.println("First day of month = "+day);
}
}输出结果
Current Date = 2019-04-10 Current Month = APRIL First day of month = 2019-04-01
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