JDK Pit: 1 Fewer months in the calendar month in Java

Many friends in making the first use of the calendar, will find that the month is inexplicable, the results are always more than expected 1 months, check several times did not find the program is wrong, and began to freak. In fact, this time, just go to see the JDK will understand the problem. The JDK tells us that the month range of the Calendar class is [0,11], that is, the month starts at 0, while the others start at 1. So we need to do +1 of the month separately when we use calendar.

JDK Pit, remember ~

Edit by Jimmy

2014.09.24

JDK Pit: 1 Fewer months in the calendar month in Java