Java java.util.Calendar.after()用法及代碼示例

java.util.Calendar.after() 是 java.util 包的 Calendar 類中的一個方法。如果此 Calendar 表示的時間晚於 when 對象表示的時間，則該方法返回 true。如果不是這種情況，則返回 false。

用法:

public boolean after(Object when)

Where, when is the Object 
that is to be compared.

下麵是一些示例，可以更好地理解 Calendar.after() 函數的實現：

範例1：


// Java code show the usage of
// after() method of Calendar class
import java.util.*;
  
class GFG {
  
// Driver code
public static void main(String[] args) 
            throws InterruptedException {
                  
    // creating calendar object
    Calendar cal_obj1 = Calendar.getInstance();
                  
    // printing current date
    System.out.println("Time 1:" + cal_obj1.getTime());
      
    // creating Calendar object     
    Calendar cal_obj2 = Calendar.getInstance();
      
    // printing current date
    System.out.println("Time 2:" + cal_obj2.getTime());
                  
    // checking if 1st date is after 2nd date
    // and printing the result
    System.out.println(cal_obj1.after(cal_obj2));
    }
}

輸出：

Time 1:Thu Mar 01 09:26:04 UTC 2018
Time 2:Thu Mar 01 09:26:04 UTC 2018
false

範例2：


// Java code to show the usage of
// after() method of Calendar class
import java.util.*;
  
class GFG {
      
    // Driver code
    public static void main(String[] args)
    {
  
        // creating calendar objects
        Calendar cal_obj1 = Calendar.getInstance();
        Calendar cal_obj2 = Calendar.getInstance();
  
        // displaying the current date
        System.out.println("Current date is:" + cal_obj1.getTime());
  
        // changing year in cal_obj2 calendar
        cal_obj2.set(Calendar.YEAR, 2010);
  
        // check if calendar date is after current date
        System.out.println("Result:" + cal_obj1.after(cal_obj2));
    }
}

輸出：

Current date is:Thu Mar 01 09:27:19 UTC 2018
Result:true

相關用法

注：本文由純淨天空篩選整理自Sahil_Bansall大神的英文原創作品 java.util.Calendar.after() method。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。