Java Formatter format()方法及示例
Formatter類format()方法 (Formatter Class format() method)
Syntax:
句法:
public Formatter format(Locale lo, String frmt, Object... args);public Formatter format(String frmt, Object... args);format() method is available in java.util package.
format()方法在java.util包中可用。
format(Locale lo, String frmt, Object… args) method is used to return this formatter which writes formatted string to this object by the given locale(lo), string format (frmt) and the given Object argument.
format(Locale lo,String frmt,Object…args)方法用于返回此格式化程序,該格式化程序通過給定的locale(lo),字符串格式(frmt)和給定的Object參數(shù)將格式化的字符串寫入此對象。
format(String frmt, Object... args) method is used to return this formatter that writes formatted string to this object by using the given string format (frmt) and Object arguments.
format(String frmt,Object ... args)方法用于返回此格式化程序,該格式化程序通過使用給定的字符串格式(frmt)和Object參數(shù)將格式化后的字符串寫入此對象。
These are the non-static methods, 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.
這些是非靜態(tài)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。
These methods may throw an exception at the time of returning Formatter.
這些方法在返回Formatter時可能會引發(fā)異常。
- FormatterClosedException: This exception throws when this formatter close by calling it's close().FormatterClosedException :當此格式化程序通過調(diào)用其close()關閉時,將引發(fā)此異常。
- IllegalArgumentException: This exception when any one of the given argument is illegal or invalid format.IllegalArgumentException :當給定參數(shù)中的任何一個為非法或無效格式時,此異常。
Parameter(s):
參數(shù):
In the first case, format(Locale lo, String frmt, Object... args),
在第一種情況下, format(Locale lo,String frmt,Object ... args) ,
- Locale lo – represents the locale to implement during formatting.
- 語言環(huán)境lo –表示格式化期間要實現(xiàn)的語言環(huán)境。
- String frmt – represents the format string.
- 字符串frmt –表示格式字符串。
- Object... args – represents the arguments linked by the format specifies in the format string.
- Object ... args –表示由格式字符串中指定的格式鏈接的參數(shù)。
In the first case, format(String frmt, Object... args),
在第一種情況下, format(String frmt,Object ... args) ,
- String frmt – represents the format string.
- 字符串frmt –表示格式字符串。
- Object... args – represents the arguments linked by the format specifies in the format string.
- Object ... args –表示由格式字符串中指定的格式鏈接的參數(shù)。
Return value:
返回值:
The return type of this method is Formatter, it returns this Formatter object.
此方法的返回類型為Formatter ,它返回此Formatter對象。
Example:
例:
// Java program is to demonstrate the example of // format() method of Formatterimport java.util.*;public class FormatOfFormatter {public static void main(String[] args) {// Instantiates a StringBuffer and Formmatter objectStringBuffer sb = new StringBuffer();Formatter formatt = new Formatter(sb, Locale.UK);// By using format(locale,format,Object...) method is// to format a string with the given localeformatt.format(Locale.UK, "Hi %s !", "IncludeHelp");// Display Formatted StringSystem.out.println(formatt);// By using format(format,Object...) method is// to format a string with the default localeformatt.format("Hi %s !", "IncludeHelp");// Display Formatted StringSystem.out.println(formatt);} }Output
輸出量
Hi IncludeHelp ! Hi IncludeHelp !Hi IncludeHelp !翻譯自: https://www.includehelp.com/java/formatter-format-method-with-example.aspx
總結
以上是生活随笔為你收集整理的Java Formatter format()方法及示例的全部內(nèi)容,希望文章能夠幫你解決所遇到的問題。
- 上一篇: oracle中dbms_DBMS中的实例
- 下一篇: jsp 嵌入java_关于JSP里的Ja