
2.7 Exercises,Problems, and Projects 85
EXERCISES,PROBLEMS, AND PROJECTS
2.7 Exercises, Problems,and Projects
2.7.1 Multiple Choice Exercises
1. What is the valid way to declare an integer variable named a? (Check
all that apply.)
❑
int a;
❑ a int;
❑ integer a;
2. Which of the following identifiers are valid?
❑
a
❑ sales
❑ sales&profit
❑ int
❑ inter
❑ doubleSales
❑ TAX_RATE
❑ 1stLetterChar
❑ char
3. Given three declared and initialized int variables a, b, and c, which of
the following statements are valid?
❑
a = b;
❑ a = 67;
❑ b = 8.7;
❑ a + b = 8;
❑ a * b = 12;
❑ c = a b;
❑ c = a / 2.3;
❑ boolean t = a;
4963X_CH02_Anderson.qxd 10/27/07 2:52 AM Page 85