Difference between revisions of "Arrays Review Questions and Exercises"
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{{1010Topic|Introduction=This section has some review questions and exercise to help you review this section.|Overview=Learn how to try out your programming skills with these exercises and questions.}} | {{1010Topic|Introduction=This section has some review questions and exercise to help you review this section.|Overview=Learn how to try out your programming skills with these exercises and questions.}} | ||
| − | =Question 1= | + | ==Review Questions== |
| − | + | ===Question 1=== | |
| − | + | ||
What is it called when you access an element outside of the bounds of an array. | What is it called when you access an element outside of the bounds of an array. | ||
Example | Example | ||
| − | <pre | + | <pre> |
int i[] = new int[3]; | int i[] = new int[3]; | ||
i[4] = 3; | i[4] = 3; | ||
</pre> | </pre> | ||
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| + | ===Question 2=== | ||
What is it called when a for-loop loops one iteration too many such that it passes the array's bounds. | What is it called when a for-loop loops one iteration too many such that it passes the array's bounds. | ||
Example: | Example: | ||
| − | <pre | + | <pre> |
int j; | int j; | ||
int array[] = new int[3]; | int array[] = new int[3]; | ||
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} | } | ||
</pre> | </pre> | ||
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| + | ===Question 3=== | ||
Does the second statement of following code copy an array? | Does the second statement of following code copy an array? | ||
| − | <pre | + | <pre> |
int array1[]={2,4} | int array1[]={2,4} | ||
int array2[]=array1; | int array2[]=array1; | ||
</pre> | </pre> | ||
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| − | |||
| + | ===Question 4=== | ||
Does the following piece of code compare two arrays? | Does the following piece of code compare two arrays? | ||
| − | <pre | + | <pre> |
int array1[]={1,3,4} | int array1[]={1,3,4} | ||
int array2[]={1,3,4} | int array2[]={1,3,4} | ||
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</pre> | </pre> | ||
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| + | ===Question 5=== | ||
Does the following piece of code change the value of '''i''' to "Hey"? | Does the following piece of code change the value of '''i''' to "Hey"? | ||
| − | <pre | + | <pre> |
String i = "Hello"; | String i = "Hello"; | ||
String array[] = new String [20]; | String array[] = new String [20]; | ||
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</pre> | </pre> | ||
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| + | ===Question 6=== | ||
What does the following piece of code print to the screen? | What does the following piece of code print to the screen? | ||
| − | <pre | + | <pre> |
String s = "Gello"; | String s = "Gello"; | ||
String h[] = new String [20]; | String h[] = new String [20]; | ||
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</pre> | </pre> | ||
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| + | ==Exercises== | ||
| + | ===Exercise 1=== | ||
Write a program that calculates the product of all the values in an array. | Write a program that calculates the product of all the values in an array. | ||
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| + | ===Exercise 2=== | ||
Write a program that finds the position of the smallest value in an array. | Write a program that finds the position of the smallest value in an array. | ||
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| − | + | ===Exercise 3=== | |
| + | Write an program to create and populate an array. | ||
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| − | + | ===Exercise 4=== | |
| + | Write a program to copy the contents of one array into another. | ||
| − | |||
| − | =Exercise | + | ===Exercise 5=== |
| − | + | Create a function to sort an array of integers. | |
| − | |||
| − | + | ===Exercise 6=== | |
| + | Write a program to print all of the values in an array. | ||
Revision as of 20:14, 10 September 2007
COMP 1010 Home > Back to Chapter Topics
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IntroductionThis section has some review questions and exercise to help you review this section.
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{{{Body}}}
Review Questions
Question 1
What is it called when you access an element outside of the bounds of an array.
Example
int i[] = new int[3];
i[4] = 3;
Question 2
What is it called when a for-loop loops one iteration too many such that it passes the array's bounds.
Example:
int j;
int array[] = new int[3];
for (j = 0; j <= 3; j++) {
array[j] = 0;
}
Question 3
Does the second statement of following code copy an array?
int array1[]={2,4}
int array2[]=array1;
Question 4
Does the following piece of code compare two arrays?
int array1[]={1,3,4}
int array2[]={1,3,4}
if(array1=array2)
System.out.println("SAME ARRAY");
else
System.out.println("NOT THE SAME");
Question 5
Does the following piece of code change the value of i to "Hey"?
String i = "Hello";
String array[] = new String [20];
array[10] = i;
array[10] = "Hey";
Question 6
What does the following piece of code print to the screen?
String s = "Gello";
String h[] = new String [20];
h[10] = s;
s = "Jello";
System.out.println(h[10]);
Exercises
Exercise 1
Write a program that calculates the product of all the values in an array.
Exercise 2
Write a program that finds the position of the smallest value in an array.
Exercise 3
Write an program to create and populate an array.
Exercise 4
Write a program to copy the contents of one array into another.
Exercise 5
Create a function to sort an array of integers.
Exercise 6
Write a program to print all of the values in an array.
