Use of shift operator in Java

Explain the use of shift operator in Java. Can you give some examples?

Using shift operators in Java we can

1. Integer division and multiplication is done faster.
Example
84547 * 4 can be done by using 84547 << 2
or
84547 / 2 can be done by using 84547 >> 1
2. To reassemble byte streams into int values
3. To accelerate operations with graphics as Red, Green and Blue colors coded by separate bytes.
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