Input / Output

Printing Output

Use print() to write values to standard output:

print("Hello, World!")
print(42)
print(true)
print(null)

print() accepts any value and outputs it followed by a newline. In the REPL, expressions are auto-printed unless assigned to variables.

Printing Multiple Values

set x = 10
set y = 20
print("Sum: ")
print(x + y)

Each print() call is on its own line. Use string concatenation to combine values on one line.

String Input

Read a string from the user with input<str>(prompt):

set name = input("What is your name?")
print("Hello, ")
print(name)

set color = input("Your favorite color?")
print("You like: ")
print(color)

The prompt is displayed and the user's input is read as a string. Trailing newlines are removed.

Integer Input

Read an integer with input<int>(prompt):

set number = input("Enter an integer:")
print("Number you entered: ")
print(number)

set a = input("First number:")
set b = input("Second number:")
print("Sum: ")
print(a + b)

The input is parsed as an integer. If the user enters non-numeric input, an error occurs.

Float Input

Read a decimal number with input<float>(prompt):

set float_num = input("Enter a decimal:")
print("You entered: ")
print(float_num)

set x = input("First decimal:")
set y = input("Second decimal:")
print("Sum: ")
print(x + y)

The input is parsed as a floating-point number. Supports decimal notation.

Interactive Programs

Combine input and output to create interactive programs:

print("--- Simple Calculator ---")
set num1 = input("First number:")
set num2 = input("Second number:")

set sum = num1 + num2
print("Sum: ")
print(sum)

print("--- Age Categorization ---")
set age = input("Your age:")

if (age < 13) {
    print("Child")
} else {
    if (age < 18) {
        print("Teenager")
    } else {
        print("Adult")
    }
}

Programs can prompt for multiple inputs and branch based on user responses. Use loops to repeat interactions.