write a program to input a sentence and display the frequency of each word only once
Answers
/ Java prorgam to count frequencies of
// characters in string using Hashmap
import java.io.*;
import java.util.*;
class OccurenceOfCharInString {
static void characterCount(String inputString)
{
// Creating a HashMap containing char
// as a key and occurrences as a value
HashMap<Character, Integer> charCountMap
= new HashMap<Character, Integer>();
// Converting given string to char array
char[] strArray = inputString.toCharArray();
// checking each char of strArray
for (char c : strArray) {
if (charCountMap.containsKey(c)) {
// If char is present in charCountMap,
// incrementing it's count by 1
charCountMap.put(c, charCountMap.get(c) + 1);
}
else {
// If char is not present in charCountMap,
// putting this char to charCountMap with 1 as it's value
charCountMap.put(c, 1);
}
}
// Printing the charCountMap
for (Map.Entry entry : charCountMap.entrySet()) {
System.out.println(entry.getKey() + " " + entry.getValue());
}
}
// Driver Code
public static void main(String[] args)
{
String str ="Any string of your choice";
characterCount(str);
}
}