CS10, 09S, UCSB

H04: Homework 4 (Based on Horstman, Chapter 4) Total points: ?

Accepted: on paper, in lecture (1-1:50pm) on Friday, April 10th only.
No email submission allowed.

Name: (2 pts)______________________________   UCSBNetID (2 pts)  _____________________

Section (2 pts) Circle one:         Thu 4pm                 Fri 10am                       Fri 11am                  Fri noon

1. (5 pts) Fill in the blank:
   
   Chapter 4 indicates that every value in Java is either a/an _____________ or it is one of eight primitive types.
   
   
   
2. (5 pts) Fill in the blank:
   
   Chapter 4 indicates that of the eight primitive types in Java, six are number types. What are the other two?
   
   
   _______________________ and ________________________
   
   
   
   
3. (6 pts) We can convert a floating point value (i.e. the float or double type) into an integer using a cast.
   Here is a statement that declares a varaible called accurateTemperature and assigns in the value 98.6.
   
   double accurateTemperature = 98.6;
   
   Now, write a Java statement that uses a cast to declare and assign an integer variable approxTemp that has an integer approximation of the value of accurateTemperature.
   
   
   
   
   
4. (6 pts) In Java, what is the value of 56 % 7


5. (6 pts) In Java, what is the value of 9 / 5
   
   
   
6. (10 pts) Suppose that we have this variable:
   
double angleInDeg;
   
   Assume that angleInDeg already has been assigned a value. Write a Java statement (or series of statements) that will declare a variable called theSine that contains the sine of that angle. (Note: You'll need to use two function calls—one to convert from degrees to radians, and another to compute the sine.)
   
   
7. (6 pts) The methods use use to compute square root, sin, cos, etc. are static methods. What is different about using a static method, vs, using a non-static method? (You'll find the answer in Chapter 4.)