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Exam 3: Decision Structures

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Question 31

Multiple Choice

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What will be printed when the following code is executed? double x = 45678.259; System.out.printf("%,.2f", x) ;

A) 45678.259
B) 0,045,678.26
C) 45,678.26
D) 45,678.3

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Question 32

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________ works like this: If the expression on the left side of the && operator is false, the expression the right side will not be checked.

A) short-circuit evaluation
B) reverse logic
C) Boolean logic
D) relational evaluation

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Question 33

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What will be the value of bonus after the following statements are executed? int bonus, sales = 10000; If (sales < 5000) Bonus = 200; Else if (sales < 7500) Bonus = 500; Else if (sales < 10000) Bonus = 750; Else if (sales < 20000) Bonus = 1000; Else Bonus = 1250;

Which of the following expressions determines whether the char variable, chrA, is not equal to the letter 'A'?

What will be the values of ans, x, and y after the following statements are executed? int ans = 35, x = 50, y = 50; If (x >= y) { Ans = x + 10; X -= y; } Else { Ans = y + 10; Y += x; }

When two strings are compared using the String class's compareTo method, the comparison is not case sensitive.

What will be the value of ans after the following statements are executed? int x = 40; Int y = 40; If (x = y) Ans = x + 10;

All it takes for an AND expression to be true is for one of the subexpressions to be true.

A flag may have the values

Which of the following expressions could be used to perform a case-insensitive comparison of two String objects named str1 and str2?

What would be the value of bonus after the following statements are executed? int bonus, sales = 85000; Char dept = 'S'; If (sales > 100000) If (dept == 'R') Bonus = 2000; Else Bonus = 1500; Else if (sales > 75000) If (dept == 'R') Bonus = 1250; Else Bonus = 1000; Else Bonus = 0;

What will be displayed after the following statements are executed? int ans = 10; Int x = 65; Int y = 55; If (x >= y) { Int ans = x + y; } System.out.println(ans) ;

What will be the value of x after the following statements are executed? int x = 10; Switch (x) { Case 10: X += 15; Case 12: X -= 5; Break; Default: X *= 3; }

If the expression on the left side of the && operator is false, the expression on the right side will not be checked.

The if-else statement will execute one group of statements if its boolean expression is true or another group if its boolean expression is false.

Which of the following is the not equal operator?

What is the value of ans after the following code has been executed? int x = 35; Int y = 20, ans = 80; If (x < y) Ans += y;

An expression tested by an if statement must evaluate to