Other contributors have said "In which phased locked loop is used?" is the same question as "Where the phased locked loop is used?" If you believe that these are not asking the same thing and should be answered differently, click here
Loops can be used to iterate or walk through an array. For example, suppose you have an array already initialized (we'll call it "array"): int target = -1; for (i=0; i < array.length(); i++){ if...
I don't think your question makes sense, but do-while is one of the loops in C language, here is an example: int main (int argc, char **argv) { int i= 0; do printf ("%d. '%s'\n", i, argv[i]); while...
A for loop should be used when you want to iterate - that is loop a specific, finite number of times. Generally a for loop is used when you are counting, or performing an operation on each element...