Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Textbook Question
Chapter 27.7, Problem 27.7.6CP
Show the output of the following code:
MyMap<String, String> map = new MyHashMap<>();
map.put("Texas", "Dallas");
map.put("Oklahoma", "Norman");
map.put("Texas", "Austin");
map.put("Oklahoma", "Tulsa");
System.out.println(map.get("Texas"));
System.out.println(map.size());
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Practice / Frequency of Characters
Write a method that returns the frequency of each characters of a given String parameter.
If the given String is null, then return null
If the given String is empty return an empty map
Example
input:
output: empty map
explanation: input is empty
Example
input: null
output: null
explanation: input is null.
Since problem output is focused on the frequency we can
comfortably use Map data structure. Because we can use
characters as key and the occurrences of them as value.
Example
input: responsible
output: {r=1, e=2, s=2, p=1,
o=1, n=1, i=1, b=1, l=1}
explanation: characters are
keys and oc
values
ences are
a) FindMinIterative
public int FindMin(int[] arr) { int x = arr[0]; for(int i = 1; i < arr.Length; i++) { if(arr[i]< x) x = arr[i];
} return x; }
b) FindMinRecursive
public int FindMin(int[] arr, int length) { if(length == 1) return arr[0];
return Math.Min(arr[length - 1], Find(arr, length - 1));
}
What is the Big-O for this functions. Could you explain the recurisive more in details ?
inhinclude
Rsing namespace std;
int maxResult( )
int maxVal
for (int i
{
for (int j = 0; j <= n
0; i <= n; i += a)
i; j += b)
%3D
%3D
float z =
(float)(n
(i + j)) / (float)(c);
if (floor(z)
{
int x =
int y
ceil(z))
i / a;
j/ b;
maxVal = max(maxVal, x + y
(int)z);
return maxVal;
}
int main()
{
max cout << maxResult( );
return 0;
1 }
Input
Compilation failed due to fellowing
ons
main.cpp:7:23: error: 'n' was not declared in this scope
7| for (int i = 0; i <= n; i a)
main.cpp:7:31: error: 'a was not declared in this scope
for (int i = 0; i <= n; i t= a)
%3D
main.cpp:9:36: error: b' was not declared in this scope
| 6
for (int j = 0; j <= n - i; j - b)
%3D
main.cpp:11:45: error: 'c was not declared in this scope
Chapter 27 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 27.2 - Prob. 27.2.1CPCh. 27.3 - Prob. 27.3.1CPCh. 27.3 - Prob. 27.3.2CPCh. 27.3 - Prob. 27.3.3CPCh. 27.3 - Prob. 27.3.4CPCh. 27.3 - Prob. 27.3.5CPCh. 27.3 - Prob. 27.3.6CPCh. 27.3 - If N is an integer power of the power of 2, is N /...Ch. 27.3 - Prob. 27.3.8CPCh. 27.3 - Prob. 27.3.9CP
Ch. 27.4 - Prob. 27.4.1CPCh. 27.4 - Prob. 27.4.2CPCh. 27.4 - Prob. 27.4.3CPCh. 27.4 - Prob. 27.4.4CPCh. 27.4 - Prob. 27.4.5CPCh. 27.4 - Prob. 27.4.6CPCh. 27.5 - Prob. 27.5.1CPCh. 27.6 - Prob. 27.6.1CPCh. 27.6 - Prob. 27.6.2CPCh. 27.6 - Prob. 27.6.3CPCh. 27.7 - Prob. 27.7.1CPCh. 27.7 - What are the integers resulted from 32 1, 32 2,...Ch. 27.7 - Prob. 27.7.3CPCh. 27.7 - Describe how the put(key, value) method is...Ch. 27.7 - Prob. 27.7.5CPCh. 27.7 - Show the output of the following code:...Ch. 27.7 - If x is a negative int value, will x (N 1) be...Ch. 27.8 - Prob. 27.8.1CPCh. 27.8 - Prob. 27.8.2CPCh. 27.8 - Can lines 100103 in Listing 27.4 be removed?Ch. 27.8 - Prob. 27.8.4CPCh. 27 - Prob. 27.1PECh. 27 - Prob. 27.2PECh. 27 - (Modify MyHashMap with duplicate keys) Modify...Ch. 27 - Prob. 27.6PECh. 27 - Prob. 27.7PECh. 27 - Prob. 27.8PECh. 27 - Prob. 27.10PECh. 27 - Prob. 27.11PECh. 27 - (setToList) Write the following method that...Ch. 27 - (The Date class) Design a class named Date that...Ch. 27 - (The Point class) Design a class named Point that...
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