If-s

We already saw that a program executes one command after another, from top to bottom.
But usually we need some branching/decisions to make while executing a program.
Let's write a program that will print if a number is positive or negative:

• declare an integer x
• input x
• add If block with value x > 0
• in the true branch output "Positive"
• in the false branch output "Negative"

For example, if the user enters number 9, output should be "Positive".
If user enters number -55, output should be "Negative".

Maybe you haven't thought about it, but expression x > 0 has type Boolean.
Boolean can be true or false.

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Hope you have learned something useful! :)
Continue learning with Intermediate level tutorials.