Oca Test Review 2026/2027

OCA TEST REVIEW 2026/2027
RuntimeExceptions - ANSWER-ArithmeticException
ArrayIndexOutOfBoundsException
ClassCastException
IllegalArgumentException
NullPointerException
NumberFormatException
(akin: AACINN)

Checked Exceptions - ANSWER-FileNotFoundException
IOException

Errors - ANSWER-ExceptionInitializerError
StackOverflowError
NoClassDefFoundError

Samples of Compile Errors - ANSWER-Unreachable Code,
Cannot switch on a value of type Boolean,
Illegal modifier,
The type T cannot subclass the final class C,
Cannot reduce visibility,
Unreachable catch block

Type hierarchy of ArrayIndexOutOfBoundsException - ANSWER-extends
IndexOutOfBoundsException
extends RuntimeException

NumberFormatException - ANSWER-extends IllegalArgumentException, extends
RuntimeException

Is RuntimeException okay for program to catch? - ANSWER-RuntimeException:
ok to be catched: Yes

Is RuntimeException required to handle by program? - ANSWER-RuntimeException:
not requried to handle

Is checked exception okay for program to catch? - ANSWER-Checked exception:
ok to be catched: Yes

Is checked exception required to handle by program? - ANSWER-Checked exception:
required to be handled

Is Error okay for program to catch? - ANSWER-Error:
ok to be catched: No

, Is Error required to handle by program? - ANSWER-Error:
not required to be handled:

Operator precedence - ANSWER-PP MAS REL STA
post-unary,
pre-unary,
mult/div/modulo,
add/sub,
shift,
relational,
equal to / not equal to,
logical,
short-circuit,
ternary,
assignment

post-unary - ANSWER-expression++, expression--

pre-unary - ANSWER-++expression, --expression, +expression, -expression, ~, !

Multiplication,Division, Modulo - ANSWER-*, /, %

Addtion, Subtraction - ANSWER-+, -

Shift - ANSWER-<<, >>, >>>

Relational - ANSWER-<, >, <=, >=, instanceof

equal to, not equal to - ANSWER-==, !=

Logical - ANSWER-&, ^, |

Short-circuit - ANSWER-&&, ||

Ternary - ANSWER-bolean expression ? expression1 : expression2

Assignment - ANSWER-=, +=, -=, *=, /=, %=, &=, ^=, |=, <<=, >>=, >>>=

Allows optional labels - ANSWER-if, while, do while, for, switch

Allows break statement - ANSWER-while, do while, for, switch

Allows continue statement - ANSWER-while, do while, for