CSC200 #1

boolean values can be displayed as the words true and false with the ________ format specifier.

%b

Which of the following statements about the continue statement is true? A) A continue statement proceeds with the next iteration of the immediately enclosing while, for, do...while statement. B) The continue statement is used to exit a repetition structure early and continue execution after the loop. C) The continue statement does not alter the flow of control. D) The continue statement is used to continue after a switch statement.

A) A continue statement proceeds with the next iteration of the immediately enclosing while, for, do...while statement.

switch(q){ case 1: System.out.println("apple"); break; case 2: System.out.println("orange"); break; case 3: System.out.println("banana"); break; case 4: System.out.println("pear"); case 5: System.out.println("grapes"); default: System.out.println("kiwi"); } Which of the following values for q will result in kiwi being included in the output? A) 3 B) Any integer less than 1 and greater than or equal to 4. C) 2 D) 1

B) Any integer less than 1 and greater than or equal to 4.

Which of the following is not a type of repetition statement in Java? A) do...while statement B) loop statement C) while statement D) for statement

B) loop statement

segment 1: int i = 0; while (i < 20){ i++; } System.out.println(i); } segment 2: for { int i = 0; i <= 20; i++){ System.out.println(i); Which of the following statements are true? A) The output from these segments is not the same. B) The scope of the control variable i is different for the two segments. C) Both The output from these segments is not the same and The scope of the control variable i is different for the two segments are true. D) Neither The output from these segments is not the same nor The scope of the control variable i is different for the two segments is true.

C) Both The output from these segments is not the same and The scope of the control variable i is different for the two segments are true.

Which of the following statements about a do...while repetition statement is true? A) The body of a do...while loop is executed only if the terminating condition is true. B) The body of a do...while loop is executed only once. C) The body of a do...while loop is always executed at least once. D) None of these.

C) The body of a do...while loop is always executed at least once.

Which of the following code is equivalent to this code segment? int total = 0; for (int i = 0; i <= 20; i += 2) total += i; ---------------------------- A) int total = 0; for (int i = 0, i <= 20, total += i; i += 2); B) int total = 0; for (int i = 20; i < 0; i += 1) total += i; C) int total = 0; for (int i = 0; i <= 20; total += i, i += 2); D) int total = 0; for (int i = 2; i < 20; total += i, i += 2);

C) int total = 0; for (int i = 0; i <= 20; total += i, i += 2);

Which formatting flag indicates that the floating-point values should be output with a thousands separator?

Comma (,)

Which of the following statements about the break statement is false? A) Common uses of the break statement are to escape early from a loop or to skip the remainder of a switch. B) The break statement is used to exit a repetition structure early and continue execution after the loop. C) The break statement, when executed in a while, for or do...while, skips the remaining statements in the loop body and proceeds with the next iteration of the loop. D) A break statement can only break out of an immediately enclosing while, for, do...while or switch statement.

D) A break statement can only break out of an immediately enclosing while, for, do...while or switch statement.

Counter-controlled repetition requires ________. A) a control variable and initial value B) a control variable increment (or decrement) C) a condition that tests for the final value of the control variable D) All of these.

D) All of these.

Which statement prints the floating-point value 123.456 right justified with a field width of 10?

System.out.printf("%10.3f", 123.456);

To exit out of a loop completely, and resume the flow of control at the next statement after the loop, use a ________.

break statement

if (gender == 1){ if (age >= 65) ++seniorFemales; }

if ( gender == 1 && age >= 65 ) ++seniorFemales;

Which expression is equivalent to if (!(grade == sentinelValue))?

if (grade != sentinelValue)

The control variable of a counter-controlled loop should be declared as ________ to prevent errors.

int