Java DecimalFormatSymbols setGroupingSeparator()方法及示例

The setGroupingSeparator(char) method of java.text .Java中的DecimalFormatSymbols类的setGroupingSeparator(char)方法用于设置该DdecimalFormatSymbols的Locale中用来表示千位分隔符的字符。该方法以代表千位分隔符的字符为参数。

语法。

public void setGroupingSeparator(char groupingSeparator)

参数。该方法接受 分组分隔符 作为参数，它是用来表示该DdecimalFormatSymbols的千位分隔符的字符。

返回值。此方法不做任何设置。

异常。此方法不抛出任何异常。

程序。

// Java program to demonstrate
// the above method
  
import java.text.*;
import java.util.*;
  
public class DecimalFormatSymbolsDemo {
    public static void main(String[] args)
    {
  
        DecimalFormatSymbols dfs
            = new DecimalFormatSymbols();
  
        System.out.println("Current Character used"
                           + " for thousands separator: "
                           + dfs.getGroupingSeparator());
  
        char groupingSeparator = '*';
  
        dfs.setGroupingSeparator(groupingSeparator);
  
        System.out.println("Updated Character used"
                           + " for thousands separator: "
                           + dfs.getGroupingSeparator());
    }
}

输出:

Current Character used for thousands separator:,
Updated Character used for thousands separator: *

参考资料: https://docs.oracle.com/javase/9/docs/api/java/text/DecimalFormatSymbols.html#setGroupingSeparator-char-