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Java program to count the characters in each word in a given sentence
To count the characters in each word in a given sentence, the Java code is as follows −
Example
import java.util.*;
public class Demo{
static final int max_chars = 256;
static void char_occurence(String my_str){
int count[] = new int[max_chars];
int str_len = my_str.length();
for (int i = 0; i < str_len; i++)
count[my_str.charAt(i)]++;
char ch[] = new char[my_str.length()];
for (int i = 0; i < str_len; i++){
ch[i] = my_str.charAt(i);
int find = 0;
for (int j = 0; j <= i; j++){
if (my_str.charAt(i) == ch[j])
find++;
}
if (find == 1)
System.out.println("The number of occurrence of " + my_str.charAt(i) + " is :" +
count[my_str.charAt(i)]);
}
}
public static void main(String[] args){
Scanner my_scan = new Scanner(System.in);
String my_str = "This is a sample";
char_occurence(my_str);
}
}Output
The number of occurrence of T is :1 The number of occurrence of h is :1 The number of occurrence of i is :2 The number of occurrence of s is :3 The number of occurrence of is :3 The number of occurrence of a is :2 The number of occurrence of m is :1 The number of occurrence of p is :1 The number of occurrence of l is :1 The number of occurrence of e is :1
A class named Demo contains the function ‘char_occurence’ that iterates through the string and counts every character and assigns its count to the respective character in the count array. In the main function, a Scanner class object is created to read the input from the console. The function is called on string and the count of every character is displayed on the console.
Updated on: 08-Jul-2020
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