The map will map characters to integers. Your method would be called by the following program: import java.util. Map; import java.util.List; import java.util.ArrayList; import java.util.Collections; public class Main public static void main(String () args) { Map count = MakeMap.countLetters ("hello"); List letters = new ArrayList(count.keySet ()); Collections.sort(letters); for(Character letter : letters) System.out.println("There are " + count.get (letter) + " of the letter " + letter + "); When run, this will print out the frequency of occurrence of each letter. $ java Main There are 1 of the letter 'e' There are 1 of the letter 'h' There are 2 of the letter 'l' There are 1 of the letter 'o' Note that each letter in "hello" occurs once except for the I' which occurs twice. To summarize, you write the MakeMap class with a static method countLetters(). This takes a word as a parameter. You need to create a map which maps each letter of the word to how often that letter occurs.
The map will map characters to integers. Your method would be called by the following program: import java.util. Map; import java.util.List; import java.util.ArrayList; import java.util.Collections; public class Main public static void main(String () args) { Map count = MakeMap.countLetters ("hello"); List letters = new ArrayList(count.keySet ()); Collections.sort(letters); for(Character letter : letters) System.out.println("There are " + count.get (letter) + " of the letter " + letter + "); When run, this will print out the frequency of occurrence of each letter. $ java Main There are 1 of the letter 'e' There are 1 of the letter 'h' There are 2 of the letter 'l' There are 1 of the letter 'o' Note that each letter in "hello" occurs once except for the I' which occurs twice. To summarize, you write the MakeMap class with a static method countLetters(). This takes a word as a parameter. You need to create a map which maps each letter of the word to how often that letter occurs.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Can someone help me with the following java program please
![The map will map characters to integers. Your method would be called by the following program:
import java.util.Map;
import java.util.List;
import java.util.ArrayList;
import java.util.Collections;
public class Main
{
public static void main(String [] args)
{
Map<Character, Integer> count =
List<Character> letters = new ArrayList<Character>(count.keySet());
Collections.sort(letters);
MakeMap.countLetters("hello");
for(Character letter : letters)
System.out.println("There are
+ count.get(letter) + " of the letter ''
+ letter + "'"');
}
}
When run, this will print out the frequency of occurrence of each letter.
$ java Main
There are 1 of the letter 'e'
There are 1 of the letter 'h'
There are 2 of the letter 'l'
There are 1 of the letter 'o'
Note that each letter in "hello" occurs once except for the 'I' which occurs twice.
To summarize, you write the MakeMap class with a static method countLetters (). This takes a word as a parameter. You need to create a map which maps each letter of the word to how often that
letter occurs.
Requested files
MakeMap.java
1 public class MakeMap
2 - {
3
// Create a static countLetters method. It should return a map of characters to integers.
4 }](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2cf3b7d1-7be2-4209-9f09-de62e112637a%2F6ea1a8b7-4231-44af-a7bb-9ee2c9dfd5a3%2F200pdk_processed.png&w=3840&q=75)
Transcribed Image Text:The map will map characters to integers. Your method would be called by the following program:
import java.util.Map;
import java.util.List;
import java.util.ArrayList;
import java.util.Collections;
public class Main
{
public static void main(String [] args)
{
Map<Character, Integer> count =
List<Character> letters = new ArrayList<Character>(count.keySet());
Collections.sort(letters);
MakeMap.countLetters("hello");
for(Character letter : letters)
System.out.println("There are
+ count.get(letter) + " of the letter ''
+ letter + "'"');
}
}
When run, this will print out the frequency of occurrence of each letter.
$ java Main
There are 1 of the letter 'e'
There are 1 of the letter 'h'
There are 2 of the letter 'l'
There are 1 of the letter 'o'
Note that each letter in "hello" occurs once except for the 'I' which occurs twice.
To summarize, you write the MakeMap class with a static method countLetters (). This takes a word as a parameter. You need to create a map which maps each letter of the word to how often that
letter occurs.
Requested files
MakeMap.java
1 public class MakeMap
2 - {
3
// Create a static countLetters method. It should return a map of characters to integers.
4 }
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