Question 1

The following loop displays:for(int i = 1: i <=10;i++){ System.out.print(i + );i++;}

Accepted Answer

1 3 5 7 9

Question 2

Assume x is 0. What is the output of the following statement?if (x>0)printf(x is greater than 0);else if (x<0)printf(x is less than 0);elseprintf(x equals zero)

Accepted Answer

x equals 0

Question 3

Is the following loop correct?for (; ; );

Accepted Answer

yes

Question 4

double sum = 0;for (double d = 0; d < 10;){d += 0.1;sum+=sum+d;}

Accepted Answer

The program has a compile error because the adjustment is missing in the for loop.

Question 5

What is i after the following for loop?int y = 0;for(int i = 0; i&lt;10;++i){ y+=i;}

Accepted Answer

undefined

Question 6

The while loop and the do loop are equivalent in their expressive power; in other words, you can rewrite a while loop using a do loop, and vice versa.

Accepted Answer

true

Question 7

Which of the loop statements always have their body executed at least once?

Accepted Answer

do-while loop

Question 8

for( ; ; )System.out.println(Welcome to Java);

Accepted Answer

prints out Welcome to Java forever

Question 9

In a for statement, if the continuation condition is blank, the condition is assumed to be

Accepted Answer

true

Question 10

You can always convert a while loop to a for loop.

Accepted Answer

true

Question 11

You can always write a program without using break or continue in a loop.

Accepted Answer

true

Question 12

A variable declared in the for loop control can be used after the loop exits.

Accepted Answer

false

Question 13

for(int i = 0; i<15; i++){ if (i%4 == 1) System.out.print(i +  );

Accepted Answer

1 5 9 13

Question 14

Will this terminate?int balance = 10; while (true){ if (balance < 9) break; balance = balance - 9;

Accepted Answer

yes

Question 15

Will this terminate?int balance = 10; while (true){ if (balance < 9) continue; balance = balance - 9;

Accepted Answer

no

Question 16

The elements inside the for loop control are separated using semicolons instead of commas.

Accepted Answer

true

Question 17

for ( ; false; )System.out.println(Welcome to Java)

Accepted Answer

does not print anything

Question 18

You can always convert a for loop to a while loop.

Accepted Answer

true

Question 19

How many iterations will there be?for (int i = 1; i < n; i++)//iteration

Accepted Answer

n-1

Question 20

To add 0.01 + 0.02 + ... + 1.00, what order should you use to add the numbers to get better accuracy?

Accepted Answer

Add 0.01, 0.02, ..., 1.00 in this order to a sum variable whose initial value is 0.

Question 21

Which of the following expression yields an integer between 0 and 100, inclusive?

Accepted Answer

(int)(Math.random()*101)

Question 22

Suppose cond1 is a Boolean expressions. When will this while condition be true?while (cond1) ...

Accepted Answer

in case cond1 is true

Question 23

double sum = 0; double d = 0; while(d != 10.0){ d +=.0; sum += sum +d;

Accepted Answer

The program may not stop because of the phenomenon referred to as numerical inaccuracy for operating with floating-point numbers.

Question 24

int y = 0; for(int i = 0; i<10; ++i){ y +=1; } System.out.println(y);

Accepted Answer

10

Question 25

int sum = 0; int item = 0; do{ item++; sum +=item; if(sum>4)continue;  }while (item<5); System.out.println(sum);

Accepted Answer

15

Question 26

int sum = 0; int item = 0; do{ item++; sum +=item; if(sum>4)break;  }while (item<5); System.out.println(sum);

Accepted Answer

6

Question 27

What is the value of balance?int balance = 10; while (balance>=1){ if (balance < 9) break; balance = balance - 9;

Accepted Answer

1

Question 28

What is the number of iterations in the following loop?for (int i = 1; i <= n; i++)//iteration

Accepted Answer

n

Question 29

A continue statement can only be used in a loop.

Accepted Answer

true

Question 30

int y = 0; for(int i = 0; i<10; ++i){ y +=1; } System.out.println(y);

Accepted Answer

10

Question 31

int y = 0; for(int i = 0; i<10; ++i){ y +=i; } System.out.println(y);

Accepted Answer

45

Question 32

int count = 0; do{ System.out.println(Welcome to Java); }while(++count<10);

Accepted Answer

10

Question 33

What is the value of balance?int balance = 10; while(balance>=1){ if(balance<9)continue; balance = balance -9; } System.out.println(balance);

Accepted Answer

the loop does not end

Question 34

for (int i = 0;i<10;i++) for (int j = 0; j<i; j++) System.out.println(i*j);

Accepted Answer

45

Question 35

int number = 25; int i;  boolean isPrime = true; for(i = 2; i< number; i++){ if(number %i == 0){ isPrime = false; break; }  } System.out.println(i is  +i+  isPrime is  +isPrime);

Accepted Answer

i is 5 isPrime is false

Question 36

int number = 25; int i;  boolean isPrime = true; for(i=2; i<number && isPrime; i++){ if(number%i ==0){ isPrime = false; } } System.out.print(i); System.out.print(isPrime);

Accepted Answer

i is 6 isPrime is false

CPS180 Chapter 5 Quiz

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