preFinals ComPro1

Question 1

is a statement that is used to control the flow of a program.

Answer 1

Control structures

Question 2

There are two (2) control structures:

Answer 2

Selection structures
Repetition structures

Question 3

the program executes particular statements depending on the given condition. This alters
the flow of program execution by making a selection or choice.

Answer 3

Selection structures

Question 4

the program repeats particular statements a certain number of times, depending on the given condition.

Answer 4

Repetition structures

Question 5

Java provides three (3) selection structures:

Answer 5

if and if…else statements and switch statement.

Question 6

statements are used to create one-way, two-way, and multiple selections.

Answer 6

if and if..else statements

Question 7

is used to test a single
variable against a series of values.

Answer 7

Switch statement

Question 8

is a reserved word, followed by the expression enclosed in parentheses.
The expression can be a relational or a logical expression that returns either true or false value.

Answer 8

if statement

Question 9

are used to choose between two (2) alternatives.

Answer 9

Two way selection

Question 10

are incorporated using the if statement.

Answer 10

One way selections

Question 11

is used to implement twoway selections in Java.

Answer 11

if…else statements

Question 12

– these are any kind of statements grouped together within curly braces.

Answer 12

Compound Statements or block of statements

Question 13

When one (1) control statement, either selection or repetition, is located within another, it is said to be nested.

Answer 13

Multiple selections

Question 14

When one (1) control statement, either selection or repetition, is located within another, it is said to be nested.

Answer 14

Multiple selections

Question 15

is a process in which the computer evaluates a logical expression from left to right and stops as
soon as the value of the expression is determined.

Answer 15

Short-Circuit Evaluation

Question 16

These logical are short-circuit operators: (2 items)

Answer 16

AND &&
OR ||

Question 17

statement allows a single variable to be tested for equality against a list of values and, depending on its value,
executes a certain block of statements.

Answer 17

Switch statement

Question 18

The variable used in a switch statement can only be type:

Answer 18

int, byte, short, char, and String

Question 19

Java provides three (3) repetition (or looping) structures that are used to execute a block of statements repeatedly:

Answer 19

while,
for, and do…while loop. while, for, and do.. are all reserved words.

Question 20

loop repeats a block of statements while a given condition evaluates to true. It evaluates the condition before executing the loop body.

Answer 20

While loop

Question 21

loop that continues to execute endlessly is called

Answer 21

Infinite loop

Question 22

executes a sequence of statements multiple times and abbreviates the code that manages the loop variable. It is used when a definite number of loop iterations is required.

Answer 22

For loop

Question 23

indicates the starting value for the loop control variable

Answer 23

Initialization

Question 24

the loop condition that controls
the loop entry

Answer 24

Condition

Question 25

is the expression that alters the loop control variable

Answer 25

Update

Question 26

The following is the flow of control in a for loop:

Answer 26

1. The initialization executes first and only once. 2. The condition is evaluated. If the loop condition evaluates to false, the loop terminates. If it evaluates to true: a. Execute the loop body of for. b. Update the loop control variable. 3. Repeat Step 2 until the loop condition evaluates to false.

Question 27

is similar to a while loop, except that it executes the loop body first before evaluating the expression

Answer 27

Do while loop

Question 28

terminates the loop or switch statement and transfers the flow of the program to the statements following the loop or switch.

Answer 28

Break

Question 29

causes the loop to skip the remainder of its body and immediately reevaluate its condition, and proceeds with the next iteration of the loop.

Answer 29

Continue

Question 30

the continue statement causes the control of the loop to immediately jump to the update statement, and then the loop condition is evaluated.

Answer 30

For loop

Question 31

using the continue statement makes the control of the loop immediately jumps to the loop condition.

Answer 31

While Do while loop

Question 32

are effective ways to avoid extra variables to control a loop and produce a clean program.

Answer 32

Break and continue statements

Question 33

are control statements that are placed within another.

Answer 33

Nested control structures

Question 34

is a sequence of characters

Answer 34

String

Question 35

Every character in a string has a specific position in the string, and the position of the first character starts at index ____

Answer 35

index 0

Question 36

is used to compare the content of two (2) strings.

Answer 36

equals()

Question 37

The relational operator _______ is used to compare the references of two (2) objects

Answer 37

(==)

Question 38

provides methods to perform operations on strings.

Answer 38

String class/methods

Question 39

Returns the character of a string based on the specified index

Answer 39

charAt(index:)

Question 40

Compares a string with another string. The method returns 0 if the string is equal to the other string. A value less than 0 is returned if the string is less than the other string (less characters) and a value greater than 0 if the string is greater than the other string (more characters).

Answer 40

compareTo()

Question 41

Returns a new string concatenated with the value of the parameter

Answer 41

concat()

Question 42

Returns true if this string and the specified string are equal; otherwise, returns false

Answer 42

equals()

Question 43

Returns true if this string and the specified string are equal, considering the uppercase and lowercase versions of a letter to be the same; otherwise, returns false

Answer 43

equalsIgnoreCase()

Question 44

Returns the index of the first occurrence of the specified string within this string. If not found, the method returns -1.

Answer 44

indexOf(string)

Question 45

Returns the index of the last occurrence of the specified string within this string. If not found, the method returns -1.

Answer 45

lastIndexOf(String)

Question 46

Returns the length of the string in int type

Answer 46

length()

Question 47

Returns a new string having the same characters as this string, but with any uppercase letters converted to lowercase. The content of this String object is unchanged.

Answer 47

toLowerCase()

Question 48

Returns a new string having the same characters as this string, but with any uppercase letters converted to uppercase. The content of this String object is unchanged.

Answer 48

toUpperCase()

Question 49

Returns a new string having the same characters as this string, but with each occurrence of specified old_char replaced by new_char. The content of this String object is unchanged

Answer 49

replace(old_Char, new_Char)

Question 50

Returns a new string having the same characters as the substring begins at specified start index through to the end of the string. The content of this String object is unchanged

Answer 50

substring(start_index)

Question 51

Returns a new string having the same characters as the substring that begins at specified index start through to but not including the character at index end. The content of this String object is unchanged.

Answer 51

substring(start, end)

Question 52

Returns a new string having the same characters as this string, but with leading and trailing whitespace removed.

Answer 52

trim()