📱 Simple Sum App (Kotlin + Jetpack Compose)

A clean and minimal Android app built with Kotlin and Jetpack Compose, designed to perform a simple addition of two numbers entered by the user.
This project demonstrates how to handle text input, state management, and button actions in Compose UI.

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🚀 Features

• 🧮 Input two numbers
• ➕ Calculate their sum
• 💬 Display the result instantly
• 🎨 Built with Jetpack Compose (modern Android UI toolkit)

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🧠 Code Example

@Composable
funSumScreen() {
var first by remember { mutableStateOf("") }
var second by remember { mutableStateOf("") }
var result by remember { mutableStateOf<Int?>(null) }
Column(
modifier =Modifier
.fillMaxSize()
.padding(24.dp),
horizontalAlignment =Alignment.CenterHorizontally,
verticalArrangement =Arrangement.Center
) {
Text("Simple Sum App", fontSize =24.sp, fontWeight =FontWeight.Bold)
OutlinedTextField(
value = first,
onValueChange = { first = it },
label = { Text("First Number") }
)
OutlinedTextField(
value = second,
onValueChange = { second = it },
label = { Text("Second Number") }
)
Button(onClick = {
val a = first.toIntOrNull()
val b = second.toIntOrNull()
if (a !=null&& b !=null) result = a + b
}) {
Text("Calculate")
}
result?.let {
Text("The sum is: $it", fontSize =20.sp)
}
}
}