locale()方法是java.util.Formatter的內(nèi)置方法，該方法返回語言環(huán)境。此區(qū)域設(shè)置由格式化程序構(gòu)造設(shè)置。具有語言環(huán)境參數(shù)的該對(duì)象的format方法不會(huì)更改此值。

用法：

public Locale locale()

參數(shù)：該函數(shù)不接受任何參數(shù)。

返回值：如果未應(yīng)用任何本地化，則該函數(shù)返回null，否則返回已初始化給格式化程序的語言環(huán)境。

異常注意：如果在調(diào)用函數(shù)之前關(guān)閉了格式化程序，則該函數(shù)將引發(fā)FormatterClosedException。

下面是上述功能的實(shí)現(xiàn)：

示例1:

// Java program to implement

// the above function

import java.util.Formatter;

import java.util.Locale;

public class Main {

public static void main(String[] args)

{

// Get the string Buffer

StringBuffer buffer

= new StringBuffer();

// Object creation

Formatter frmt

= new Formatter(buffer,

Locale.CANADA);

// Format a new string

String name = "My name is Gopal Dave";

frmt.format("What is your name? \n%s !",

name);

// Print the Formatted string

System.out.println(frmt);

// Prints the format that has been set

// Initially to the formatter

System.out.println("Locale: "

+ frmt.locale());

}

}

輸出：

What is your name?

My name is Gopal Dave !

Locale: en_CA

示例2:

// Java program to implement

// the above function

import java.util.Formatter;

import java.util.Locale;

public class Main {

public static void main(String[] args)

{

try {

// Get the string Buffer

StringBuffer buffer

= new StringBuffer();

// Object creation

Formatter frmt

= new Formatter(buffer,

Locale.CANADA);

// Format a new string

String name = "My name is Gopal Dave";

frmt.format("What is your name? \n%s !",

name);

// Print the Formatted string

System.out.println(frmt);

// Formatter closed

frmt.close();

// Prints the format that has been set

// Initially to the formatter

System.out.println("Locale: "

+ frmt.locale());

}

catch (Exception e) {

System.out.println("Exception is: "

+ e);

}

}

}

輸出：

What is your name?

My name is Gopal Dave !

Exception is: java.util.FormatterClosedException

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