1Z0-829 Utilizing Java Object-Oriented Approach Practice Question

Match each functional interface to its abstract method signature.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts

Matches

T get()

void accept(T t)

R apply(T t)

boolean test(T t)

T apply(T t)

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Predicate: boolean test(T)

The correct matches are Predicate -> boolean test(T), Consumer -> void accept(T), Supplier -> T get(). Common confusions involve swapping method signatures between interfaces.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
Predicate: boolean test(T)
Why this is correct
Predicate's abstract method is test(T), returning boolean.
✓
Consumer: void accept(T)
Why this is correct
Consumer's abstract method is accept(T), returning void.
✓
Supplier: T get()
Why this is correct
Supplier's abstract method is get(), returning T.
✗
Predicate: T get()
Why it's wrong here
Incorrect — this describes Supplier, not Predicate.
✗
Consumer: boolean test(T)
Why it's wrong here
Incorrect — this describes Predicate, not Consumer.
✗
Function: void accept(T)
Why it's wrong here
Incorrect — this describes Consumer, not Function.

Go deeper

1Z0-829 Utilizing Java Object-Oriented Approach Practice Question

Why each option matters

Option-by-option breakdown

Related to this question