Round Robin implementation in java
Naming

Your variables, class and methods aren't very well named.

The class Roundrobin1 should be Pascal case. It's also discouraged from using numbers in class names. If you are thinking of doing implementations of Round Robin, perhaps DefaultRoundRobin would be okay. If not, just RoundRobin is fine.

You have a local variable named Local. Variables should always be camel case to distinguish them from classes. 

You also have a few inconsistencies such as timepassed, which should be timePassed, and waitingMAp which should be waitingMap.

It's not clear what the method mainL is supposed to do. Give it a more specific name.

Fields

Fields should be declared with the lowest access possible. Your fields can be private as they are not required outside of the class. Fields should be declared as final if you do not expect them to change.

Whitespace

Consider using it more liberally, especially between operators.

entry.getValue() &gt; commonInt


is easier to read than

entry.getValue()&gt;commonInt


Compound Statements

Specifically this line:

waitingTimeList.add(entry.getValue()&gt;3?timepassed=timepassed+3:     (timepassed=timepassed+entry.getValue()));


has way too much going on. You could refactor it to:

timepassed += (entry.getValue() &gt; 3) ? 3 : entry.getValue();
waitingTimeList.add(timepassed);


which is much more readable.

Magic Numbers

You have a few seemingly random 3s and 9s. Consider using constants (static final fields) with appropriate names.