What is SuppressWarnings (“unchecked”) in Java?

Question

Sometime when looking through code, I see many methods specify an annotation:

@SuppressWarnings(\"unchecked\")

What does this mean?

Answer 1

You can suppress the compiler warnings and tell the generics that the code which you had written is legal according to it.

Example:

@SuppressWarnings("unchecked")
public List retreiveMealPlan() {
     List list=new ArrayList();
    TestMenuService testMenuService=new TestMenuService(em, this.selectedInstance);
    list = testMenuService.getMeal(reservationMealPlan);
    return list;
 }