Java Calendar set()用法及代碼示例

Calendar類中的set(int calndr_field，int new_val)方法用於將calndr_field值設置為new_val。此日曆的舊字段將替換為新字段。

用法:

public void set(int calndr_field, int new_val)

參數：該方法有兩個參數：

calndr_field：這是“日曆”類型，是指要更改的日曆字段。
new_val：這是指要替換的新值。

返回值：該方法不返回任何值。

以下示例程序旨在說明Calendar類的set()方法的用法：
示例1:

// Java code to illustrate 
// set() method 
  
import java.util.*; 
public class Calendar_Demo { 
    public static void main(String args[]) 
    { 
  
        // Creating a calendar 
        Calendar calndr = Calendar.getInstance(); 
  
        // Displaying the month 
        System.out.println("The Current Month is: "
                           + calndr.get( 
                                 Calendar.MONTH)); 
  
        // Replacing with a new value 
        calndr.set(Calendar.MONTH, 11); 
  
        // Displaying the modified result 
        System.out.println("Altered Month is: "
                           + calndr.get( 
                                 Calendar.MONTH)); 
    } 
}

輸出：

The Current Month is: 1
Altered Month is: 11

示例2:

// Java code to illustrate 
// set() method 
  
import java.util.*; 
public class Calendar_Demo { 
    public static void main(String args[]) 
    { 
  
        // Creating a calendar 
        Calendar calndr = Calendar.getInstance(); 
  
        // Displaying the Year 
        System.out.println("The Current year is: "
                           + calndr.get( 
                                 Calendar.YEAR)); 
  
        // Replacing with a new value 
        calndr.set(Calendar.YEAR, 1996); 
  
        // Displaying the modified result 
        System.out.println("Altered year is: "
                           + calndr.get( 
                                 Calendar.YEAR)); 
    } 
}

輸出：

The Current year is: 2019
Altered year is: 1996

參考： https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html#set-int-int-

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注：本文由純淨天空篩選整理自Chinmoy Lenka大神的英文原創作品 Calendar set() Method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。