English 中文(简体)
How do you print two places exactly using zero-pad flag in a print statement
原标题:
  • 时间:2009-11-26 13:28:50
  •  标签:
  • java
  • printf

if wanted to make a this method print using zero pad how do you do so

int month, day;

public void  printNumeric()
{
  System.out.printf("month +"/" +day +" 
");
  // i would like the month if it is 5 to be 05 same thing with the day
}
最佳回答
int month, day;

public void  printNumeric()
{
  System.out.printf("%02d/%02d
", month, day);
  // i would like the month if it is 5 to be 05 same thing with the day
}
问题回答

You can use java.util.Formatter or String.format

String.format("%02d", somenumber)
for (int i=0; i<19; i++)
   System.out.format("i: %02d
", i);




相关问题
Spring Properties File

Hi have this j2ee web application developed using spring framework. I have a problem with rendering mnessages in nihongo characters from the properties file. I tried converting the file to ascii using ...

Logging a global ID in multiple components

I have a system which contains multiple applications connected together using JMS and Spring Integration. Messages get sent along a chain of applications. [App A] -> [App B] -> [App C] We set a ...

Java Library Size

If I m given two Java Libraries in Jar format, 1 having no bells and whistles, and the other having lots of them that will mostly go unused.... my question is: How will the larger, mostly unused ...

How to get the Array Class for a given Class in Java?

I have a Class variable that holds a certain type and I need to get a variable that holds the corresponding array class. The best I could come up with is this: Class arrayOfFooClass = java.lang....

SQLite , Derby vs file system

I m working on a Java desktop application that reads and writes from/to different files. I think a better solution would be to replace the file system by a SQLite database. How hard is it to migrate ...

热门标签