Exam 3: Decision Structures

Unicode is an international encoding system that is extensive enough to represent ALL the characters of ALL the world's alphabets.

What does the following code display? double x = 12.3798146; System.out.printf("%.2f \ n",x);

An important style rule you should follow when writing if statements is to line up the conditionally executed statement with the if statement.

The expression tested by an if statement must evaluate to

What would be the value of discountRate after the following statements are executed? double discountRate; Char custType = 'B'; Switch (custType) { Case 'A': DiscountRate = .08; Break; Case 'B': DiscountRate = .06; Case 'C': DiscountRate = .04; Default: DiscountRate = 0.0; }

What is the value of x after the following code has been executed? int x = 75; Int y = 90; If ( x != y) X += y;

What will be printed when the following code is executed? int y = 10; If ( y == 10) { Int x = 30; X += y; } System.out.print("x = "); System.out.print(x);

Because the && operator performs short-circuit evaluation,your boolean expression will usually execute faster if the subexpression that is most likely false is on the left of the && operator.

In Java,when a character is stored in memory,it is actually stored as a(n)_____.

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;

Enclosing a group of statements inside a set of braces creates a

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

If str1 and str2 are both Strings,which of the following expressions will correctly determine whether they are equal? (1)(str1 == str2) (2)str1.equals(str2) (3)(str1.compareTo(str2)== 0)

When two Strings are compared using the compareTo method,the cases of the two strings are not considered.

What does the following code display? int d = 9,e = 12; System.out.printf("%d %d \ n",d,e);

A flag may have the values

A local variable's scope always ends at the closing brace of the block of code in which it is declared.

These operators are used to determine whether a specific relationship exists between two values.

To do a case insensitive compare which of the following could be used to test the equality of two strings,str1 and str2?

Because the || operator performs short-circuit evaluation,your boolean expression will generally be evaluated faster if the subexpression that is most likely to be true is on the left.