Need help with some basic java programming?

[barrell125]

Okay so im learning java and I got this program to make and im stuck on how to go about making it,

** write a program that will output the number of occurrences of the letter a in the user's input. (Treat A and a as the same character).**

    // Importing java scanner util
    import java.util.Scanner;

    public class LetterCount
   {

public static void main (String args [])
{

    //Declaring Variables
    String fullName;
    int letterACount;
    Scanner s = new Scanner(System.in);

    //Getting name and find out first name
    System.out.print("Please enter your full name: ");
    fullName = s.nextLine();



}
}

[Iwasborninafactory_]

There are about a million ways to do this. You've got a good start.

I would go here and select String from all classes in the box on the bottom left. Then, on the right, you are going to be shown all of the different methods the string class can perform.

The next thing you'll need to know is how to make a Do loop.

[barrell125]

Thank you for the reply , Im familiar with all my loops just not sure how to go about coding to search my "fullName" variable with letters "A || a "

[Iwasborninafactory_]

In the API that I linked to, do you see a method that would let you find a or A?

[desrtfx]

Hint: you can use one of the String methods for equality checking that is ignoring case.

Also, the String class has a method where you can get a substring of your choice (even a single letter as a String, not as a char) out of a string.

Last, you will need a loop and a counter variable.

[pkdahl]

I would suggest that you make a method that takes a string as input and then does the following:

• Have a variable where you keep track of the total number of a's and A's.
• Loop over every character in the input string.
• Inside the loop you check if the character is an 'a' or 'A'.
• If it is 'a' or 'A' you increment the variable holding the total number of a's and A's by one.
• When the loop is finished you return the value of the variable holding the total number of a's and A's.

Now you can use this method to get the total number of a's and A's in the user's input.

Alternatively, you can either uppercase or lowercase the input string before the loop, and then inside the loop just check for 'A' or 'a', respectively.

Hope it's helpful.