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interface IDictionary{ public String getValue(String key); //Returms the value to which the key is mapped in this dictionary. public void changeValue(String key, String newValue); //Maps the key to the new value. public void swap(String key1, String key2); //Swaps the values of keyl and key2. } *A dictionary consists of two String arrays. * The first array holds the keys and the second array holds values. * For example: my_keys={"Alice","Bob","Charlie"}; * my_values={"CMPE", "BIOE", "IE"} * The key-value pair has the same index. For instance, "Alice" and "CMPE" is a key-value pair. Write a Dictionary class that implements IDictionary. 1. Your class constructor must have two parameters, a String array that holds the keys and a String array that holds the values as described above. 2. Your constructor must throw an exception if the array lengths don't match. 3. Implement the getValue, changeValue and swap methods as described above. 4. Write a test class and test all methods.

interface IDictionary{ public String getValue(String key); //Returms the value to which the key is mapped in this dictionary. public void changeValue(String key, String newValue); //Maps the key to the new value. public void swap(String key1, String key2); //Swaps the values of keyl and key2. } *A dictionary consists of two String arrays. * The first array holds the keys and the second array holds values. * For example: my_keys={"Alice","Bob","Charlie"}; * my_values={"CMPE", "BIOE", "IE"} * The key-value pair has the same index. For instance, "Alice" and "CMPE" is a key-value pair. Write a Dictionary class that implements IDictionary. 1. Your class constructor must have two parameters, a String array that holds the keys and a String array that holds the values as described above. 2. Your constructor must throw an exception if the array lengths don't match. 3. Implement the getValue, changeValue and swap methods as described above. 4. Write a test class and test all methods.

Computer Networking: A Top-Down Approach (7th Edition)
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...
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interface IDictionary{ public String getValue(String key); //Returns the value to which the key is mapped in this dictionary. public void changeValue(String key, String newValue); //Maps the key to the new value. public void swap(String key1, String key2); //Swaps the values of key1 and key2. /* A dictionary consists of two String arrays. * The first array holds the keys and the second array holds values. * For example: my_keys={"Alice","Bob","Charlie"}; * my_values={"CMPE", "BIOE", "IE"} * The key-value pair has the same index. For instance, "Alice" and "CMPE" is a key-value pair. Write a Dictionary class that implements IDictionary. 1. Your class constructor must have two parameters, a String array that holds the keys and a String array that holds the values as described above. 2. Your constructor must throw an exception if the array lengths don't match. 3. Implement the getValue, changeValue and swap methods as described above. 4. Write a test class and test all methods.
Transcribed Image Text:interface IDictionary{ public String getValue(String key); //Returns the value to which the key is mapped in this dictionary. public void changeValue(String key, String newValue); //Maps the key to the new value. public void swap(String key1, String key2); //Swaps the values of key1 and key2. /* A dictionary consists of two String arrays. * The first array holds the keys and the second array holds values. * For example: my_keys={"Alice","Bob","Charlie"}; * my_values={"CMPE", "BIOE", "IE"} * The key-value pair has the same index. For instance, "Alice" and "CMPE" is a key-value pair. Write a Dictionary class that implements IDictionary. 1. Your class constructor must have two parameters, a String array that holds the keys and a String array that holds the values as described above. 2. Your constructor must throw an exception if the array lengths don't match. 3. Implement the getValue, changeValue and swap methods as described above. 4. Write a test class and test all methods.
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