Assignemnt #86 and LetterAtATime.java
Code
/// Name: Boris Kazantsev
/// Period: 6
/// Program Name: LetterAtATime
/// File Name: LetterAtATime.java
/// Date Finished: 2/24/2016
import java.util.Scanner;
public class LetterAtATime
{
public static void main( String[] args )
{
Scanner kb = new Scanner(System.in);
System.out.print("What is your message? ");
String message = kb.nextLine();
System.out.println("\nYour message is " + message.length() + " characters long.");
System.out.println("The first character is at position 0 and is '" + message.charAt(0) + "'.");
int lastpos = message.length() - 1;
System.out.println("The last character is at position " + lastpos + " and is '" + message.charAt(lastpos) + "'.");
System.out.println("\nHere are all the characters, one at a time:\n");
for ( int i=0; i < message.length(); i++ )
{
System.out.println("\t" + i + " - '" + message.charAt(i) + "'");
}
int a_count = 0;
for ( int i=0; i < message.length(); i++ )
{
char letter = message.charAt(i);
if ( ( letter == 'a' || letter == 'A' ) || ( letter == 'e' || letter == 'E' ) || ( letter == 'i' || letter == 'I' ) || ( letter == 'o' || letter == 'O' ) || ( letter == 'u' || letter == 'U' ) )
{
a_count++;
}
}
System.out.println("\nYour message contains " + a_count + " vowels. Isn't that interesting?");
}
}
// 1.The program will crush because ".charAt()" requires a value samller than ".length();"
// 2."box" has length of 3 chars and "x" is positioned at index 2.
// 3.Since i is still less than .length ().
Picture of the output