格式化程序類toString()方法 (Formatter Class toString() method)

• toString() method is available in java.util package.

  toString()方法在java.util包中可用。

• toString() method is for the string representation of this Formatter.

  toString()方法用于此Formatter的字符串表示形式。

• toString() 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.

  toString()方法是一種非靜態方法，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。

• toString() method may throw an exception at the time of string representation of this Formatter.

  在此Formatter的字符串表示形式時， toString()方法可能會引發異常。

  FormatterClosedException: This exception may throw when this formatter close by calling its close() method.

  FormatterClosedException ：當此格式化程序通過調用其close()方法關閉時，可能會拋出此異常。

Syntax:

句法：

public String toString();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of this method is String, it works on the destination for the output.

此方法的返回類型為String ，它在輸出的目標上起作用。

Example:

例：

// Java program is to demonstrate the example of // toString() method of Formatterimport java.util.*;public class ToStringOfFormatter {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() method is to format// a stringformatt.format("Hi %s !", "IncludeHelp");// Display Formatted StringSystem.out.println(formatt);// By using toString() method is to// represent the string formatted by// this FormatterSystem.out.println("formatt.toString(): " + formatt.toString());} }

Output

輸出量

Hi IncludeHelp ! formatt.toString(): Hi IncludeHelp !

翻譯自: https://www.includehelp.com/java/formatter-tostring-method-with-example.aspx

總結

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