1Z0-811 Primitives, Strings and Operators Practice Question
Which THREE of the following are valid Java operators?
⚠ Common exam trap
Oracle often tests candidates' familiarity with the complete set of Java operators by including plausible but invalid symbols like <== or ::, exploiting the confusion between language constructs and true operators.
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
✓
<<
(<<) is correct because it is the Java left shift operator, which shifts the bits of an integer or long value to the left by a specified number of positions, filling with zeros. This is a valid bitwise shift operator in Java, defined in the Java Language Specification (JLS §15.19).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
::
Why it's wrong here
Method reference, not operator.
- ✓
<<
Why this is correct
Shift operator.
- ✓
instanceof
Why this is correct
Type comparison operator.
- ✓
>>>
Why this is correct
Unsigned right shift.
- ✗
<==
Why it's wrong here
Not a valid operator.
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