Seriously need help here
how can i wrte a program that read character only? i mean alphabert
like people key in "i +am+ 12567 a",;. boy,"
and the program only read iamaboy

is there another way other than lowercase the string and then compare a-z?

Programming isn't magic, every convievable method is not included in the java api. You need to write your own method for extracting alphabetic characters from a string. You can loop through the string, use tokenizers as said, use regular expressions to do something etc...

And what du you mean by write a program that reads alphabetic characters only? Where do you get your input from?

the question is actually like this
user enter a string
then write a program that count the consonant and vowel

i tried using comparison style but for some reason
when the string is short it show the correct answer(count correctly)
and when the string is lengthy
the answer is wrong

import java.util.Scanner;

public class Str	{

//Declare a static scanner
static Scanner input = new Scanner(System.in);

	//Data field
	String Message;

	//Default constructor
	Str()	{
	}

	//Constructor with argument
	Str(String newMessage)	{
	Message = newMessage;
	}

	//Method int countVowels to count the vowels through comparison
	int countVowels()	{
		//Counter
		int count = 0;
		//Convert the string to lower case to compare
		String lowerMessage = Message.toLowerCase();
		//Loop
		for (int i = 0 ; i < lowerMessage.length() ; i++)	{
			//Declare x as character from string
			char x = lowerMessage.charAt(i);
			//Comparison
			if (x =='a' || x =='e' || x =='i' || x == 'o' || x == 'u')	{
			count++;
			}
		}
	//Return counter
	return count;
	}

	//Method int countConsonants to count consonants through comparison method
	int countConsonants()	{
		//Counter
		int count = 0;
		//Convert the string to lower case for comparison
		String lowerMessage = Message.toLowerCase();
		//Loop
		for(int i = 0 ; i < lowerMessage.length() ; i++)	{
			//Declare x as character of string
			char x = lowerMessage.charAt(i);
			//Comparison
			if ( x == 'q' || x == 'e' || x == 'r' || x == 't' || x == 'y' || x == 'p' || x =='s' || x == 'd'
			|| x == 'f' || x == 'g' || x =='h' || x == 'j' || x =='k' || x == 'l' || x == 'z'
			|| x == 'x' || x == 'c' || x == 'v' || x == 'b' || x == 'n' || x == 'm')	{
			count++;
			}
		}
	//Return counter
	return count;
	}
}
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