Java java.util.logging.logger.使用数组对象作为参数 [英] Java java.util.logging.logger. Using array objects as arguments

问题描述

java.util.logging.Logger类提供使用这种语法的能力:

java.util.logging.Logger class provides ability to use such a syntax:

int i=0;
log.log(Level.INFO,"int i = {0}", i);

这将打印出"int i = 0".不幸的是，当我有一个较大的值(如9093)时，它将打印出"int i = 9,023"，每三个数字之间用逗号分隔.

This will print out "int i = 0". Unfortunately when I have a bigger value, like 9093, it will print out "int i= 9,023" separating each 3 digits with comma.

问题是我应该如何去除小写逗号?最好更改{}的内部.尝试了{0:d}和{0:％d}.两者都没有帮助.甚至可以像这样控制参数吗?还是我应该将自己的int转换为字符串?

The question is how should I get rid of thoose commas? Preferably changing insides of {}. Tried both {0:d} and {0:%d}. Both didnt help. Is it even possible to control parametres like this? Or should I convert my int to string myself?

推荐答案

似乎第二个参数是MessageFormat，它支持子格式".试试

It seems the second parameter is a MessageFormat which supports "sub-formats". Try

log.log(Level.INFO, "int i = {0,number,#}", 1234567);

这消除了我对字符的分组.

This eliminates grouping characters for me.

请参见 http://docs.oracle.com /javase/7/docs/api/java/text/MessageFormat.html 和

See http://docs.oracle.com/javase/7/docs/api/java/text/MessageFormat.html and http://docs.oracle.com/javase/7/docs/api/java/text/DecimalFormat.html (number sub-formats are interpreted as DecimalFormat).

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