EXAM QUESTIONS AND ANSWERS |
100% PASS
Is it possible to create an array in Java where the first row has 5 elements, the
second row has 6 elements and the third row has 2 elements? - 🧠 ANSWER ✔✔yes
create a for loop to execute: Is it possible to create an array in Java where the first
row has 5 elements, the second row has 6 elements and the third row has 2
elements? - 🧠 ANSWER ✔✔double [] [] salaries = new double
[NUM_STORES][];
array[0] = new double [5];
array[1] = new double [6];
array[2] = new double [2];
Write the statement to print the number of elements in a one-dimensional array. - 🧠
ANSWER ✔✔for(i =0; i<array.length -1; i++)
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,{
System.out.println(array[i]);
}
What does Java initialize the elements of an array of references to? - 🧠 ANSWER
✔✔null
What does Java initialize an array of ints to? - 🧠 ANSWER ✔✔0
Is an array an object? - 🧠 ANSWER ✔✔Yes
int [ ] numbers = new int[16] how many objects were created? - 🧠 ANSWER ✔✔1,
new was used once
Student [ ] roster = new Student[25] <- how many objects were created? - 🧠
ANSWER ✔✔1, new was used once
Write the command to compile a source code file named Book.java - 🧠 ANSWER
✔✔javac Book.java
Write the command to run a class file named Book.class - 🧠 ANSWER ✔✔java
Book
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, Where does the execution of a Java project begin? - 🧠 ANSWER ✔✔public static
void main(String [] args)
How many public classes can a Java class file contain? - 🧠 ANSWER ✔✔1
Can you declare fields of a class inside a method? - 🧠 ANSWER ✔✔No
What does private access for a field mean? - 🧠 ANSWER ✔✔Only the current
class will have access to the field or method.
What does public access for a field mean? - 🧠 ANSWER ✔✔Any class can refer to
the field or call the method.
What does protected access for a field mean? - 🧠 ANSWER ✔✔Only the current
class and sub classes (and sometimes also same-package classes) of this class will
have access to the field or method.
What happens if you do not specify the access for a field? - 🧠 ANSWER ✔✔It will
set the access to package
Can a sub-class also be a super-class? - 🧠 ANSWER ✔✔Yes, Java allows this
What is an abstract method? - 🧠 ANSWER ✔✔It is a method that is declared, but
contains no implementation
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED