Java数字转字符串前面自动补0的实现
本文原址：http://blogger.org.cn/blog/more.asp?name=hongrui&id=46926
/**
* Java里数字转字符串前面自动补0的实现。
*
*/
public class TestStringFormat {
public static void main(String[] args) {
int youNumber = 19;
// 0 代表前面补充0
// 4 代表长度为4
// d 代表参数为正数型
String str = String.format("%02d", youNumber);
System.out.println(str); // 01
}
}
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