鍦↗ava涓紝鍙互浣跨敤java.util.Date鍜?code>java.util.Calendar绫绘潵澶勭悊鏃ユ湡鍜屾椂闂淬€備粠Java 8寮€濮嬶紝杩樺紩鍏ヤ簡java.time鍖咃紝鍏朵腑鍖呭惈浜嗘柊鐨勬棩鏈熷拰鏃堕棿API锛屽寘鎷?code>LocalDate銆?code>LocalTime銆?code>LocalDateTime銆?code>ZonedDateTime绛夌被銆?/p>

浠ヤ笅鏄娇鐢↗ava鐨?code>java.time鍖呯殑涓€浜涘父瑙佹搷浣滐細

1. 鑾峰彇褰撳墠鏃ユ湡鍜屾椂闂达細

import java.time.LocalDateTime;
LocalDateTime now = LocalDateTime.now();
System.out.println("褰撳墠鏃ユ湡鍜屾椂闂达細" + now);

2. 鏍规嵁鎸囧畾鐨勬棩鏈熷拰鏃堕棿鍒涘缓瀵硅薄锛?/li>

import java.time.LocalDate;
import java.time.LocalTime;
import java.time.LocalDateTime;

LocalDate date = LocalDate.of(2020, 12, 31);
System.out.println("鎸囧畾鏃ユ湡锛?quot; + date);

LocalTime time = LocalTime.of(23, 59, 59);
System.out.println("鎸囧畾鏃堕棿锛?quot; + time);

LocalDateTime dateTime = LocalDateTime.of(date, time);
System.out.println("鎸囧畾鏃ユ湡鍜屾椂闂达細" + dateTime);

3. 鏍煎紡鍖栨棩鏈熷拰鏃堕棿锛?/li>

import java.time.format.DateTimeFormatter;
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
String formattedDateTime = dateTime.format(formatter);
System.out.println("鏍煎紡鍖栧悗鐨勬棩鏈熷拰鏃堕棿锛?quot; + formattedDateTime);

4. 鍦ㄦ棩鏈熷拰鏃堕棿涓婅繘琛岃繍绠楋細

import java.time.LocalDateTime;
import java.time.Duration;

LocalDateTime oldDateTime = LocalDateTime.of(2020, 1, 1, 0, 0, 0);
LocalDateTime newDateTime = LocalDateTime.of(2021, 1, 1, 0, 0, 0);

Duration duration = Duration.between(oldDateTime, newDateTime);
System.out.println("鏃堕棿宸細" + duration);

杩欏彧鏄竴浜涘父瑙佺殑鐢ㄦ硶绀轰緥锛?code>java.time鍖呬腑杩樻湁寰堝鍏朵粬鐨勭被鍜屾柟娉曞彲浠ョ敤鏉ュ鐞嗘棩鏈熷拰鏃堕棿銆備綘鍙互鏍规嵁鍏蜂綋鐨勯渶姹傦紝鏌ラ槄Java瀹樻柟鏂囨。鎴栧叾浠栨暀绋嬫潵瀛︿範鏇村鍏充簬java.time鍖呯殑鐢ㄦ硶銆?/p>