Write a recursive function in Java /** * Generate all combinations of the characters in the string s with length k. * * @param s a string. * @param k the length of the combinations * @return a list of all of the combinations of the strings in s. */
Write a recursive function in Java /** * Generate all combinations of the characters in the string s with length k. * * @param s a string. * @param k the length of the combinations * @return a list of all of the combinations of the strings in s. */
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
Write a recursive function in Java
/**
* Generate all combinations of the characters in the string s with length k.
*
* @param s a string.
* @param k the length of the combinations
* @return a list of all of the combinations of the strings in s.
*/
Transcribed Image Text:~~~~~~~~~~~~447±‡‚¯¯ninunge
200
21
22
23
24
25
26
27
28
29
30
32
x 310 public static ArrayList<String> combinations(String s, int k) {
33
34
350
36
37
38
39
40
41
42
43
45
46
48
49
50
51
52
53
540
55
56
57
58
59
60
/**
* Generate all combinations of the characters in the string s with length
* k.
*
* @param s
*
* @param k
61
a string.
the length of the combinations
* @return a list of all of the combinations of the strings in s.
*/
}
/**
* Recursive Problem Transformation:
*
* Generate all combinations of length k of the characters in rest prefixed
* with the characters in prefix. This is very similar to the subset method!
* Note k is the total length of each string in the returned ArrayList.
*
* <code>
* For example:
* combinations ("", "ABC", 2) -> "" before {AB, AC, BC}
-> {AB, AC, BC}
*
*
*
combinations ("A", "BC", 2) -> A before {BC, B, C, ""}
-> {AB, AC}
* combinations ("", "BC", 2)
*
* </code>
*/
}
private static ArrayList<String> combinations (String prefix, String rest,
int k) {
recusiveCalls++;
"" before {BC, B, C, ""}
-> {BC}
return null;
Expert Solution
Step 1
As per the given question, we need to generate all combinations of the characters in the string s with length k where the combinations start with the given prefix in java using recursion.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY