鍙互浣跨敤Java涓殑Calendar绫绘潵杈撳嚭鏈堜唤鐨勫ぉ鏁般€備互涓嬫槸涓€涓ず渚嬩唬鐮侊細

import java.util.Calendar;

public class Main {
    public static void main(String[] args) {
        int year = 2021;
        int month = 2; // 2浠ｈ〃浜屾湀浠斤紝娉ㄦ剰鏈堜唤鏄粠0寮€濮嬭鏁扮殑锛屾墍浠?浠ｈ〃涓夋湀浠?/span>

        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.YEAR, year);
        calendar.set(Calendar.MONTH, month);
        int daysInMonth = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);

        System.out.println(year + "骞?quot; + (month + 1) + "鏈堝叡鏈?quot; + daysInMonth + "澶?quot;);
    }
}

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鍦ㄧず渚嬩唬鐮佷腑锛屾垜浠缃簡骞翠唤涓?021骞达紝鏈堜唤涓?鏈堬紝鍗充笁鏈堜唤銆傜▼搴忎細杈撳嚭"2021骞?鏈堝叡鏈?1澶?quot;銆傛敞鎰忥紝鏈堜唤鏄粠0寮€濮嬭鏁扮殑锛屾墍浠?浠ｈ〃涓夋湀浠姐€?/p>