日歷類的getDisplayName()方法 (Calendar Class getDisplayName() method)
getDisplayName() method is available in java.util package.
getDisplayName()方法在java.util包中可用。
getDisplayName() method is used to return string denotation of the given calendar field(fi) in the specified style(st) and locale(lo).
getDisplayName()方法用于以指定的style(st)和locale(lo)返回給定日歷字段(fi)的字符串表示形式。
getDisplayName() method is a non-static method, it is accessible with the class object and if we try to access the method with the class name then we will get an error.
getDisplayName()方法是一個非靜態方法，可通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。
getDisplayName() method may throw an exception at the time of returning the calendar field with the given pattern.
使用給定的模式返回日歷字段時， getDisplayName()方法可能會引發異常。
- IllegalArgumentException: This exception may throw when calendar field or style values are not valid.IllegalArgumentException ：如果日歷字段或樣式值無效，則可能引發此異常。
- NullPointerException: This exception may throw when the given parameter Locale(lo) is null exists.NullPointerException ：如果給定參數Locale(lo)為null，則可能引發此異常。
Syntax:
句法：
public String getDisplayName(int fi, int st, Locale lo);
Parameter(s):
參數：
int fi – it represents the field(fi) of this Calendar.
int fi –它代表此日歷的字段(fi)。
int st – it represents the style that will implemented to the string denotation.
int st –它表示將對字符串符號實施的樣式。
Locale lo – it represents the locale of the string denotation.
語言環境lo –它表示字符串符號的語言環境。
Return value:
返回值：
The return type of the method is String, it returns string denotation of the given calendar field(fi) in the given style(st) or locale(lo) when exists otherwise it returns null when no string denotation exists.
該方法的返回類型為String ，如果存在，它將以給定的style(st)或locale(lo)返回給定日歷字段(fi)的字符串表示形式，否則，如果不存在任何字符串表示形式，則返回null。
Example:
例：
// Java Program to demonstrate the example of
// String getDisplayName() method of Calendar
import java.util.*;
public class GetDisplayName {
public static void main(String args[]) {
// Creating two objects of Locale
Locale lo1 = new Locale("Japanese", "Japan");
Locale lo2 = new Locale("Telgu", "Tamil");
// Display lo1 and lo2
System.out.println("Locale 1: " + lo1);
System.out.println("Locale 2: " + lo2);
// By using getDisplayName() method
// is to display the name of locale 1
String s = lo1.getDisplayName();
// Displaying the results
System.out.println("lo1.getDisplayName(): " + s);
// By using getDisplayName() method
// is to display the name of locale
s = lo2.getDisplayName();
// Displaying the results
System.out.println("lo2.getDisplayName(): " + s);
}
}
Output
輸出量
Locale 1: japanese_JAPAN
Locale 2: telgu_TAMIL
lo1.getDisplayName(): japanese (JAPAN)
lo2.getDisplayName(): telgu (TAMIL)
翻譯自: https://www.includehelp.com/java/calendar-getdisplayname-method-with-example.aspx
