Running Methods in parallel

is it possible to run methods in parallel? pls see sample below for full details.

void main()

{

RunMethod1(); //runs for 5 seconds

RunMethod2(); //runs for 5 seconds

}

normally the program would end after 10 seconds.

but i want the program to complete in 7 seconds.

basically i want to do something like this.

Time in Sec 1 2 3 4 5 6 7 8 9 10

RunMethod1 1 2 3 4 5

RunMethod2       1 2 3 4 5

so the methods are running in parallel from (3rd to the 5th second)

is this possible? if so how?

Thanks!