Question

Suppose we have sets of integers S and T, and we have corresponding Java objects of type Set named s and t. Is it the following equivalent? S ⊆ T and t.containsAll(s)

Answer 1

Yes, S ⊆ T and t.containsAll(s) are equivalent.

Step-by-step explanation:

Yes, the given condition S ⊆ T and t.containsAll(s) are equivalent. In set notation, S ⊆ T means that every element of set S is also an element of set T. In Java, the method t.containsAll(s) checks if all elements of set s are present in set t. Therefore, if S ⊆ T holds true, then t.containsAll(s) will also be true, and vice versa.