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Name:_______________________
Chapter 6 on Methods
50 mins
CSCI 1301 Introduction to Programming
Armstrong Atlantic State University
Instructor: Dr. Y. Daniel Liang
I pledge by honor that I will not discuss this exam with anyone until my
instructor reviews the exam in the class.
Signed by ___________________ Date _____________________
(50 minutes)
Part I.
a. (3 pts) Complete the code:
public class Test {
public static void main(String[] args) {
int i = 4; int j = 5;
}
b. (3 pts) Complete the code:
public class Test {
public static void main(String[] args) {
int i = 4; int j = 5;
Part II. Show the output of the following code:
a. (1 pts)
public class Test {
public static void main(String[] args) {
System.out.println(m(1, 2));
System.out.println(m(2, 1));
}
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}
c. (3 pts)
public class Test {
public static void main(String[] args) {
int i = 0;
while (i <= 4) {
method1(i);
i++;
}
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Part III:
a. (8 pts) Write a method to compute the following sum:
12
…
5
2
3
1
)( +
+++= i
i
im
Write a test program that displays the following table:
i m(i)
1 0.3333
}
public static double m(int i) {
// Fill in the code here
}
}
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b. (5 pts) Write a method that will display numbers from 1 to n, 7
numbers per line. The numbers are separated by one space. The
method header is as follows:
c. (8 pts) Write a method that returns the number of uppercase letters
in a string s using the following header:
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Part IV: Multiple Choice Questions: (1 pts each)
(1. Mark your answers on the sheet. 2. Login and click Take
Instructor Assigned Quiz for Quiz3. 3. Submit it online
within 5 mins. 4. Close the browser.)
1 What is Math.rint(3.5)?
A. 3
B. 5.0
C. 4
D. 3.0
E. 4.0
#
2 Suppose
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3 (char)(‘a’ + Math.random() * (‘z’ – ‘a’ + 1)) returns a random character
__________.
A. between ‘a’ and ‘y’
B. between ‘b’ and ‘z’
C. between ‘b’ and ‘y’
D. between ‘a’ and ‘z’
#
4 The signature of a method consists of ____________.
A. method name and parameter list
B. return type, method name, and parameter list
C. parameter list
D. method name
#
5. Analyze the following code:
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return n;
}
public static long xMethod(long n) {
System.out.println(“long”);
return n;
}
}
#
7 When you invoke a method with a parameter, the value of the argument is
passed to the parameter. This is referred to as _________.
A. pass by name
B. pass by value
C. pass by reference
D. method invocation
#
8 Which of the following should be declared as a void method?
A. Write a method that returns a random integer from 1 to 100.
B. Write a method that prints integers from 1 to 100.
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9 Each time a method is invoked, the system stores parameters and local
variables in an area of memory, known as _______, which stores elements in
last-in first-out fashion.
A. storage area
B. a heap
C. a stack
D. an array
#
10. What is the output of the following code?
public class Test {
public static void main(String[] args) {
System.out.println(m(“ABCDEFG”));
}
public static String m(String s) {
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return s.substring(0, 3) + s.substring(5);
}
#
11. Given the following method:
public static double m(double x) {
x++;
return 2 * x;
}
What is the output of the following code?
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