Switch

Switch

Switch-style branching is useful when you want to compare one value against several possible options.

BornomalaScript expresses this pattern with dekho, jokhon, tokhon, and arNahole.

Basic Example

Switch-style branching can be expressed using chained jokhon and tokhon blocks.

dhoro x = inputNao("Enter a value: ")

dekho (x) erModdhe {
    jokhon 1 tokhon {
        lekho("You typed 1")
    }
    jokhon 5 tokhon {
        lekho("You typed 5")
    }
    arNahole {
        lekho("Nothing Matched")
    }
}

dhoro y = inputNao("Enter a number: ")

dekho (y < 2) erModdhe {
    jokhon sotto tokhon {
        lekho("True")
    }
    jokhon mittha tokhon {
        lekho("False")
    }
    arNahole {
        lekho("nothing matched")
    }
}

How It Works

The switch-style block checks one expression and then compares it against several possible values.

That makes it useful when:

• a program has menu choices
• you want to match against several known values
• you want cleaner code than many separate conditions

Step-by-Step Breakdown

1. The program asks the user for input
2. The dekho block begins
3. Each jokhon block checks one possibility
4. If nothing matches, arNahole runs

This pattern keeps decision logic easy to read.

Try These Variations

Try changing the input values and see which branch runs:

dhoro x = inputNao("Enter 1, 5, or anything else: ")

dekho (x) erModdhe {
    jokhon 1 tokhon {
        lekho("One")
    }
    jokhon 5 tokhon {
        lekho("Five")
    }
    arNahole {
        lekho("No match")
    }
}

You can also try a true/false style switch example:

dhoro y = inputNao("Enter a number: ")

dekho (y < 2) erModdhe {
    jokhon sotto tokhon {
        lekho("True")
    }
    jokhon mittha tokhon {
        lekho("False")
    }
    arNahole {
        lekho("Nothing matched")
    }
}

Why Switch Matters

Switch-style branching helps keep programs neat when there are many choices.

It is often easier to read than a long chain of separate conditional checks.

Common Mistakes

Beginners often make these mistakes:

• Forgetting to include arNahole
• Using the wrong comparison value
• Expecting multiple jokhon blocks to run at the same time
• Mixing input text and numeric values without checking the type

Practice Task

Try writing switch-style code for:

1. A menu option
2. A day of the week
3. A grade or score label
4. A yes/no choice

Quick Checklist

Before moving on, make sure you can:

• Use dekho to start a switch-style block
• Add multiple jokhon branches
• Use arNahole for the fallback case
• Read the result of each branch correctly

If yes, you understand the basic switch pattern in BornomalaScript.