ΠΠΎΠ΄ΡΠΊΠ°ΠΆΠΈΡΠ΅ ΠΏΠ»ΠΈΠ· Π² ΡΠ΅ΠΌ Π΄Π΅Π»ΠΎ? ΠΠΎΠΉ Π²Π°ΡΠΈΠ°Π½Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΠΎΠ»Π½ΠΎΡΡΡΡ ΡΠ°Π±ΠΎΡΠΈΠΉ.
ΠΠ΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΠΎΡΡΠΈΡΠ°ΡΡ Π±ΡΠΊΠ²Ρ - ΡΡΠΈΡΠ°Π΅Ρ!
ΠΡΠΆΠ½ΠΎ ΡΡΠΈΡΡΠ²Π°ΡΡ Π·Π°Π³Π»Π°Π²Π½Π΅ - ΡΡΠΈΡΡΠ²Π°Π΅Ρ ΠΏΡΡΠ΅ΠΌ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ toLowerCase();
Π°Π±ΠΈΠ΄Π½Π°))
package com.javarush.task.task18.task1816;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
/*
ΠΠ½Π³Π»ΠΈΠΉΡΠΊΠΈΠ΅ Π±ΡΠΊΠ²Ρ
*/
public class Solution {
public static void main(String[] args) throws IOException {
char[] letters = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
String line;
String allStringFile = "";
BufferedReader reader = new BufferedReader(new FileReader(args[0]));
while ((line = reader.readLine()) != null) allStringFile = allStringFile + line;
reader.close();
allStringFile.toLowerCase();
char[] allCharsFile = allStringFile.toCharArray();
int count = 0;
for (int i = 0; i < allCharsFile.length; i++) {
for (int j = 0; j < letters.length; j++) {
if (allCharsFile[i] == letters[j]) count++;
}
}
System.out.println(count);
}
}