How to check a timeperiod is overlapping another time period in java

Question

How to check a time period is overlapping another time period in the same day.

For example,

1. 7:00AM to 10:30AM is overlapping 10:00AM to 11:30AM

Answer 1

JOda Time has this functionality baked in. It's very well-built and on JSR route to replace the broken Java Calendar API. You should probably considering using it.