Slot Machine Java Code While/for Loops

The following java for-loop exercises have been collected from various internet sources such as programmr.com and codewars. Go to my tutoring page if you need more help and would like to talk to a tutor.

On this post, let’s take a look at how beginners of Java programming can make a simple, yet fully functional slot machine. Slot machines have been around for a long time, but its entertainment value doesn’t seem to fade one bit. Java Slot Machine Loop. Problems in your code: for every iteration of the loop the userTotal is 100.00-userBet1. 'While similar questions may be on-topic. This is done by firstly creating a file called Slots.java that will contain only the code for the UI. Then, creating an ActionListener that will listen to different button clicks (there are 5 different buttons). Finally, creating a class called App.java that will only create a Slots instance and make it run. Basically, the App.java would look. In while loop, condition is evaluated first and if it returns true then the statements inside while loop execute. When condition returns false, the control comes out of loop and jumps to the next statement after while loop.

User input does not work with the embedded compiler (paiza) below. That is why you see the problems being worded and setup slightly differently than on the rest of the page.

Happy Coding!

Exercise 1:

Determine and print the number of times the character ‘a’ appears in the input entered by the user.

Exercise 2:

Write a program that will print a box of #’s taking from user the height and width values.

Exercise 3

Write a program to find the sum of 5 integers.

Exercise 4

Write a java program to calculate the factorial value of given number. Factorial x –> x * x-1 * x-2…x*1

Example: factorial 4 = 4 * 3 * 2 * 1 = 24

Exercise 5

Suppose we have a database composed of two fields or columns (arrays), the first field is for the username (user[]) and the other one is for the password(pass[]) .

This is how it looks like:

user[0] = “Hassan” ;

user[1] =”Idris”;

user[2]=”Trevor” ;

And their passwords correspond with their indexes.

pass[0] = “homecomingking”;

pass[1] = “turnupcharlie”;

pass[2] = “afraidofthedark”;

Then if one of them had successfully login, the output should be:

Enter username: Hassan

Enter password: homecomingking

Hello Hassan!

Slot Machine Java Code While/for Loops Tutorial

But if not, “Incorrect Login!”

You can ignore case for the username but not for the password.

Exercise 6

You have to design the code such that the user has only three tries to guess the correct pin of the account. You set the pin as a constant with a final attribute. When correct display “Correct, welcome back.” When incorrect display “Incorrect, try again.”. When ran out of tries display “Sorry but you have been locked out.”

Exercise 7

Write a program that prompts user for a word and prints “Yes” if it is a palindrome and “No” if it is not.

Exercise 8 (Advanced)

This is a code wars kata. click here to train on “Abbreviate a Two Word Name” on code wars.

Write a function to convert a name into initials. You can assume the program takes in two words with one space in between them.

The output should be two capital letters with a dot separating them.

It should look like this:

Exercise 9

This is a code wars kata. click here to train on “Grasshopper – Summation” on code wars.

Write a program that finds the summation of every number from 1 to num. The number will always be a positive integer greater than 0.

Exercise 10

This is a code wars kata. click here to train on “Sentence Smash” on code wars.

Write a method smash that takes an array of words and smashes them together into a sentence and returns the sentence. You can ignore any need to sanitize words or add punctuation, but you should add spaces between each word. Be careful, there shouldn’t be a space at the beginning or the end of the sentence!

The following java for-loop exercises have been collected from various internet sources such as programmr.com and codewars. Go to my tutoring page if you need more help and would like to talk to a tutor.

User input does not work with the embedded compiler (paiza) below. That is why you see the problems being worded and setup slightly differently than on the rest of the page.

Happy Coding!

Exercise 1:

Determine and print the number of times the character ‘a’ appears in the input entered by the user.

Exercise 2:

Write a program that will print a box of #’s taking from user the height and width values.

Exercise 3

Write a program to find the sum of 5 integers.

Exercise 4

Write a java program to calculate the factorial value of given number. Factorial x –> x * x-1 * x-2…x*1

Example: factorial 4 = 4 * 3 * 2 * 1 = 24

Exercise 5

Suppose we have a database composed of two fields or columns (arrays), the first field is for the username (user[]) and the other one is for the password(pass[]) .

This is how it looks like:

user[0] = “Hassan” ;

user[1] =”Idris”;

user[2]=”Trevor” ;

And their passwords correspond with their indexes.

pass[0] = “homecomingking”;

pass[1] = “turnupcharlie”;

pass[2] = “afraidofthedark”;

Then if one of them had successfully login, the output should be:

Enter username: Hassan

Enter password: homecomingking

Hello Hassan!

But if not, “Incorrect Login!”

You can ignore case for the username but not for the password.

Exercise 6

Simple Slot Machine Java Code

You have to design the code such that the user has only three tries to guess the correct pin of the account. You set the pin as a constant with a final attribute. When correct display “Correct, welcome back.” When incorrect display “Incorrect, try again.”. When ran out of tries display “Sorry but you have been locked out.”

Exercise 7

Write a program that prompts user for a word and prints “Yes” if it is a palindrome and “No” if it is not.

Exercise 8 (Advanced)

This is a code wars kata. click here to train on “Abbreviate a Two Word Name” on code wars.

Write a function to convert a name into initials. You can assume the program takes in two words with one space in between them.

Slot Machine Java Code While/for Loops Tutorial

The output should be two capital letters with a dot separating them.

It should look like this:

Exercise 9

This is a code wars kata. click here to train on “Grasshopper – Summation” on code wars.

Write a program that finds the summation of every number from 1 to num. The number will always be a positive integer greater than 0.

Free Slot Machine Java Code

Exercise 10

Slot Machine Java Code While/for Loops C++

This is a code wars kata. click here to train on “Sentence Smash” on code wars.

Slot Machine Java Code While/for Loops Free

Write a method smash that takes an array of words and smashes them together into a sentence and returns the sentence. You can ignore any need to sanitize words or add punctuation, but you should add spaces between each word. Be careful, there shouldn’t be a space at the beginning or the end of the sentence!