Examples

51 programs to explore

From “Hello World” to a hotel food order with GST. Open one, press Run, then change it and make it yours. Each opens in its own tab, so your own work stays open too.

Beginner

Hello World

Ask for a name and greet the user.

Input & output

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Beginner

Add Two Numbers

Ask for two numbers and show the sum.

Values

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Beginner

Birthday Card

Greet someone and work out their age next year.

Joining text

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Beginner

Rectangle Area

Work out the area and perimeter of a rectangle.

Maths

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Beginner

Temperature Converter

Turn °C into °F with a formula.

Maths

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Beginner

Minutes to Hours

Split minutes into hours and minutes using %.

Remainders

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Beginner

Swap Two Values

Swap two values using a helper value.

Changing values

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Beginner

Even or Odd

Check whether a number is even or odd.

Decisions

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Beginner

Pass or Fail

Check if a mark is 40 or more.

Decisions

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Beginner

Adult or Minor

Ask for an age and say whether they're an adult.

Decisions

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Beginner

Circle Area

Work out a circle's area and the distance round it, rounded to 2 places.

Maths & round()

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Beginner

Positive, Negative or Zero

A decision inside a decision sorts any number into one of three.

Decisions

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Beginner

Savings Interest

How much interest your savings earn, and what you'll have at the end.

Maths

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Intermediate

Count to 10

Use a repeat loop to count from 1 to 10.

Loops

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Intermediate

Traffic Light

Say what to do for each light colour.

Many decisions

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Intermediate

Calculator

Add, subtract, multiply or divide, with a divide-by-zero check.

Many decisions

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Intermediate

Grade Calculator

Turn marks into a grade from A to F.

Many decisions

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Intermediate

Leap Year

Use && and || to check for a leap year.

And / or

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Intermediate

Largest of Three

Keep track of the biggest number so far.

Decisions

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Intermediate

Times Table

Print any times table from 1 to 10.

Loops

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Intermediate

Star Triangle

Grow a line of stars each time round the loop.

Loops

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Intermediate

Can I Vote?

Check two things at once with &&.

And / or

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Intermediate

BMI Calculator

Calculate BMI, round it, and say what it means.

Maths & decisions

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Intermediate

Day of the Week

Turn a number into a day name with one Choose block.

Choose

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Intermediate

Café Menu

Choose an item, set its price, then work out the bill.

Choose

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Intermediate

Add Up the Numbers

Count from 1 to any number, adding as you go.

Count loop

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Intermediate

Rocket Launch

Count down from 10 to 1 with a step of -1.

Count loop

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Intermediate

Dice Roller

Roll five dice, keep them in a list, find the best roll.

Random & lists

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Intermediate

Sign Machine

Choose what to do by the sign you type: +, -, * or /.

Choose

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Intermediate

Sum of Digits

Take a number apart digit by digit with % and floor(), adding as you go.

Repeat While

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Intermediate

Multiplication Grid

A Count inside a Count builds a grid of times tables, row by row.

Loops inside loops

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Intermediate

Skip Counting

Count up to 50 in jumps of any size, using Count's step.

Count loop

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Intermediate

Check the Age

Keep asking until the age makes sense, with Repeat While and a second Ask.

Checking answers

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Advanced

Hotel Food Order

Order dishes from a menu, then get a bill with discount and GST.

Loops + decisions

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Advanced

Hotel Room Booking

Book a room: nightly rate, extra guests, long-stay discount and tax.

Many decisions

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Advanced

Shopping Cart & Coupons

Add up a cart, apply a coupon code, and work out delivery.

Loops + decisions

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Advanced

ATM Machine

Withdraw cash with checks for balance and ₹100 notes.

Many decisions

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Advanced

Guess the Number

Three tries to guess a secret number, with too-high/too-low hints.

Loops + decisions

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Advanced

Prime Number Check

Count a number's divisors to see if it's prime.

Loops + decisions

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Advanced

Guessing Game

Guess a random number with higher/lower hints until you get it.

Repeat While

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Advanced

Shopping List

Build a list from answers, then print it with For Each.

Lists

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Advanced

Class Marks

Add a mark to a list, then find the average, highest and lowest.

Lists & functions

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Advanced

Word Tools

Capitals, letter count, backwards, and a palindrome check.

Text & For Each

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Advanced

Find a Name

Look through a list item by item to find where a name is.

Lists & searching

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Advanced

Backwards List

Count down from the last item to the first to build the list backwards.

Lists & counting down

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Advanced

Temperature Table

A toFahrenheit(c) function, called for every temperature in a list.

Functions

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Advanced

Report Card

A Student class with marks, and an average() method that goes through them.

Classes

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Advanced

Price Machine

Build a lineTotal(price, qty) function once, then use it for pens and for notebooks.

Functions

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Advanced

Grade Function

A gradeFor(mark) function with a Return on each path, called for every mark in a list.

Functions

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Advanced

My Pet

One object holds a pet's name and energy. Feed it with Change a Field.

Objects

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Advanced

Bank Accounts

An Account class with deposit and withdraw methods; each account keeps its own balance.

Classes

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