Question#1
A _____ loop in Java checks its condition after executing the loop body, guaranteeing at least one execution of the body.
a) for-each
b) do-while ✅- Answer
c) for
d) while

Question#2
The enhanced for loop in Java, often called the _____ loop, is mainly used for traversing arrays and collections without index management.
a) nested
b) for-each ✅- Answer
c) do-while
d) while

Question#3
The _____ statement in Java skips the remaining statements in the current iteration and jumps to the next iteration of the loop.
a) exit
b) continue ✅- Answer
c) break
d) return

Question#4
A Java array can only store a _____ set of elements and must be of the same data type.
a) random
b) unlimited
c) fixed ✅- Answer
d) dynamic

Question#5
The Java keyword used to trigger the garbage collector explicitly is _____.
a) Garbage.run()
b) gc.collect()
c) Collect.memory()
d) System.gc() ✅- Answer

Question#6
The _____ statement in Java transfers program control to the statement following the enclosing loop or switch.
a) next
b) continue
c) exit
d) break ✅- Answer

Question#7
The entry point for accessing command-line arguments in a Java program is the _____ parameter of the main method.
a) cmdArgs
b) mainArgs
c) args ✅- Answer
d) arguments

Question#8
A multidimensional array in Java is actually an array of _____.
a) objects
b) primitives
c) arrays ✅- Answer
d) methods

Question#9
By _____ a reference variable, its referenced object becomes eligible for garbage collection.
a) incrementing
b) nulling ✅- Answer
c) copying
d) creating

Question#10
In a for loop, the initialization, condition, and increment/decrement are specified in a _____ line.
a) single ✅- Answer
b) random
c) separate
d) three

Question#11
A for loop is preferred over other loops in Java when the exact number of _____ is known.
a) arguments
b) iterations ✅- Answer
c) arrays
d) objects

Question#12
Arrays in Java are stored in _____ memory locations, allowing efficient access by index.
a) virtual
b) separate
c) segregated
d) contiguous ✅- Answer

Question#13
A _____ in Java is an object that allows dynamic resizing and belongs to the Collections Framework.
a) Stack
b) TreeSet
c) LinkedList
d) ArrayList ✅- Answer

Question#14
A while loop in Java evaluates its condition _____ entering the loop body.
a) during
b) before ✅- Answer
c) randomly
d) after

Question#15
A Java multidimensional array with three indices is known as a _____.
a) 2D array
b) vector array
c) 3D array ✅- Answer
d) multi-array

Question#16
Command line arguments in Java are always treated as type _____.
a) Character
b) Object
c) Integer
d) String ✅- Answer

Question#17
Using _____ in Java can reclaim memory occupied by unreferenced objects automatically.
a) reference counting
b) manual memory management
c) garbage collection ✅- Answer
d) static allocation

Question#18
The break statement in Java can never be used _____ in the program but must be inside a loop or switch.
a) independently ✅- Answer
b) with return
c) after continue
d) recursively

Question#19
The property used to determine the total number of elements in a Java array is _____.
a) capacity
b) count
c) length ✅- Answer
d) size()

Question#20
Assigning one object reference to another in Java can make the original object eligible for _____.
a) compilation
b) garbage collection ✅- Answer
c) inheritance
d) serialization