java时间比较，java基础

package com.thegreatapi.ahundreddaysofjava.day002; import org.junit.jupiter.api.Test; import java.time.LocalDateTime; import java.time.format.DateTimeFormatter; import static org.assertj.core.api.Assertions.assertThat; class Day002Test { @Test void formatDate() { DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss"); LocalDateTime currentDateTime = LocalDateTime.of(2020, 1, 31, 20, 35, 45); assertThat(currentDateTime.format(FORMATTER)) .isEqualTo("31/01/2020 20:35:45"); } }