WEEK 1 – 9 ONLY

Question 1

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A child class inherits all the methods of every other class.

Select one:

a. False

b. True

Question 2

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What can come before an else statement?

Select one:

a. If statement

b. all of the choices

c. If-else-if statement

d. none of the choices

e. else-if statement

Question 3

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The operator “new” allocates a memory block the size of what is declared.

Select one:

a. True

b. False

Question 4

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Declaring an object in Java uses the new keyword to create a new object.

Select one:

a. False

b. True

Question 5

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Abstraction works by hiding the implementation details and showing only the functions necessary.

Select one:

a. True

b. False

Question 6

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Please refer to figure 1 to answer the question below: 

The output of println is _______

Select one:

a. 0

b. 55555

c. error

d. 12345

Question 7

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While loops can use Booleans at test expressions.

Select one:

a. True

b. False

Question 8

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When polymorphism is used, the Java object can only take one form. Subclasses should have the same function with the parent class.

Select one:

a. False

b. True

Question 9

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Please refer to figure 1 to answer the question below: If the test expression “num <= 10” is changed to “num <= 2”, the final value of num would be _______.

Select one:

a. Error

b. 2

c. 5

d. 4

Question 10

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While statements check the test expression at the end.

Select one:

a. True

b. False

“||” and “&&” can be used in conditional statements.

Select one:

a. False

b. True

All are methods of the array class except _______.

Select one:

a. substring( )

b. equals( )

c. toString( )

d. length( )

Question 3

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A superclass is also known as a parent class.

Select one:

b. True

Question 4

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Arrays are_______.

Select one:

a. Objects

This type of declaration is discouraged.

Select one:

b. None of the choices

Question 6

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The return value of the length( ) method is an integer

Select one:

a. True

Question 7

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Statements can be expressions.

Select one:

b. True

Question 8

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Another loop can be used as test expression.

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a. False

Question 9

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The length( ) method returns the size (number of indices) has.

Select one:

a. True

Inherited fields and methods can be used _______ by child classes.

Select one:

c. Directly

Question 1

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Switches can work properly even without the “break” expression.

Select one:

a. False

Please refer to figure 1 to answer the question below: 

The output of println is _______

Select one:

c. 55555

The sort( ) method is always ascending.

Select one:

b. True

Switches are always used with if-else statements

Select one:

b. False

Variables must be declared as _______ for it to be fully hidden.

Select one:

b. Private

What does ‘new’ in int[ ] myArray = new int[n] do?

Select one:

d. Assigns memory for the array

Blocks can contain more blocks of code.

Select one:

a. True

The equivalent of Paragraphs in coding is?

Select one:

c. Blocks

String[ ][ ][ ] myArray is a declaration of ________ array.

Select one:

o. 3-d or 3-dimensional

Question 1

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The length( ) method returns the size (number of indices) has.

Select one:

a. True

Question 2

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The return value of the length( ) method is an integer

Select one:

b. True

Question 3

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Abstraction works by hiding the implementation details and showing only the functions necessary.

Select one:

a. True

Question 4

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number++; is a block

Select one:

a. False

Question 5

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The else statement can be used alone.

Select one:

b. False

Question 6

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The expression int[ ] myArray = new int[10] will ________ memory that can contain 10 integers.

Select one:

o. Allocate

Question 7

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“||” and “&&” can be used in conditional statements.

Select one:

a. True

Question 8

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A polymorphic object can pass more than one Is-a test.

Select one:

a. True

Question 9

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Among the statements below which is only an expression

Select one:

b. “string1” + “string2”

Question 10

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The operator “new” allocates a memory block the size of what is declared.

Select one:

a. True

True or False: Netbeans is one of the IDEs or Integrated Development Environment to run Java programs.

Answer: 

Question 2

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True or False: Many programmers can be literate with Java programming language for it is intended to be that way.

Answer: 

Question 3

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Read each statement carefully and decide whether it’s TRUE or FALSE.

The last line of code, with a close brace { symbol, is properly indented.

The last line of code, with a close brace { symbol, is properly

indented.

Select one:

False

Question 4

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True or False: When you run javac in a command line interface, it will automatically create another file with a filename extension .class.

Answer: 

Question 5

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Read each statement carefully and decide whether it’s TRUE or FALSE.

On line 6, average is equal to 0. But on line 9, average will be equal to 100.

The last line of code, with a close brace { symbol, is properly

indented.

Select one:

False

Question 6

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Read each statement carefully and decide whether it’s TRUE or FALSE.

If you run this program, the second line of output will read Your score is:

The last line of code, with a close brace { symbol, is properly

indented.

Select one:

True

Question 7

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True or False: Syntax is basically the spelling and grammar errors compiled in a Java programming language. It should be avoided in writing apps and applets.

Answer: 

Question 8

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True or False: JDK or Java Design Kit is required to compile and run Java apps and applets.

Answer: 

Question 9

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Read each statement carefully and decide whether it’s TRUE or FALSE.

The following figure shows the Netbeans Integrated Development Environment.

The last line of code, with a close brace { symbol, is properly

indented.

Select one:

True

Question 10

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Read each statement carefully and decide whether it’s TRUE or FALSE.

There are no errors in the program.

The last line of code, with a close brace { symbol, is properly

indented.

Select one:

False

Question 1

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True or False: A boolean variable can only have two values; it is either true or false.

Answer: 

Question 2

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

The first line of the code should have either a yes or no value.

Answer: 

Question 3

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True or False: Public, static and void are sample of Java reserved keywords.

Answer: 

Question 4

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

There are keywords found in line 7.

Answer: 

Question 5

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

Line 9 uses a traditional comment which uses double forward slash.

Answer: 

Question 6

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

There are five (5) separators used in line 8.

Answer: 

Question 7

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

There are no errors on line 8.

Answer: 

Question 8

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

There are three (3) separators found in line 13.

Answer: 

Question 9

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

If there are no errors in the program, line 9 would display I weigh 160.

Answer: 

Question 10

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Refer to the block of codes below. Read each statement carefully and decide whether it’s TRUE or FALSE. 

Assuming there are no errors in the code, line 13 would display When I graduate, I’d be 18.

Answer: 

Refer to the program below. Read each statement carefully and write the output for each line specified. 

Line 17 will display on the screen.

Refer to the program below. Read each statement carefully and write the output for each line specified. 

Line 11 will display on the screen.

Question 1

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True or False: The conditional AND operator uses two ampersand (&&) symbols.

Answer: 

Question 2

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True or False: The modulus operator returns the remainder of a division operation instead of the quotient.

Answer: 

Observe the following statements and decide whether the variable result’s value is TRUE or FALSE.

Given that:

    int x = -77;

    int z = 43;

result = (z < x && 1 != 10) ? true : false;

result = 90 < x || -1 < z;

Select one:

True

Please refer to Figure 2 to answer the question below: 

Figure 2 is an example of?

Select one:

c. If-else-if nested in a switch

Question 2

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x+1 is example of a statement.

Select one:

a. False

Question 3

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Polymorphic objects can pass ________ Is-a test.

Select one:

d. More than one

Question 4

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A superclass is also known as a parent class.

Select one:

a. True

Question 5

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Loops can be stopped with a break; statement.

Select one:

b. True

Question 6

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For-loops can be nested in while loops.

Select one:

a. True

Question 7

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While statements check the test expression at the end.

Select one:

a. False

Question 8

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Blocks can be one liner or huge classes.

Select one:

b. True

Question 9

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Statements can be expressions.

Select one:

a. False

Question 10

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Expressions are like clauses.

Select one:

b. True

This type of declaration is discouraged.

Select one:

d. String myArray[ ];

Question 2

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________ is one of the four fundamental concepts, this is also known as data hiding.

Select one:

b. Encapsulation

Question 3

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A class block can be an expression

Select one:

a. False

Question 4

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Among the expressions below which is a statement?

Select one:

e. number++;

Question 5

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String[ ][ ] myArray is a declaration of ________ array.

Select one:

f. 2-d or 2-dimensional

Question 6

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Expressions can be long and complex.

Select one:

a. True

Question 7

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Arrays are_______.

Select one:

d. Objects

Question 8

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While loops can use Booleans at test expressions.

Select one:

b. True

For-loops can check the test expression at the end.

Select one:

b. False

Question 1

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Please refer to Figure 2 to answer the question below: 

If the value of “pStr” in line 7 is changed to _______ then the value of “pStr” in line 24 will be changed as well.

Select one:

b. True

Question 2

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Using a break; statement causes the loop to jump to the next iteration.

Select one:

b. False

Question 3

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The test expressions in conditional statements can be left empty.

Select one:

b. False

Question 4

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Please refer to Figure 2 to answer the question below: 

Figure 2 is an example of?

Select one:

a. If-else-if nested in a switch

Question 5

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x+1 is example of a statement.

Select one:

a. False

Question 6

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In instantiating an object, the keyword instance is used.

Select one:

a. False

Question 7

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Declaration clauses are declared as “number + 1”.

Select one:

a. False

Question 8

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Expressions can be statements.

Select one:

b. True

Question 9

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Please refer to Figure 2 to answer the question below: 

The value of “pStr” in line 24 is _______.

Select one:

c. tralse

Question 10

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The sort( ) method is always ascending.

Select one:

a. True