Universal Code Snippet
void main() {
print('Hello, World!');
}import 'dart:io';
void main() {
stdout.write('Enter your name: ');
String name = stdin.readLineSync()!;
print('Hello, $name!');
}void main() {
int age = 20;
if (age >= 18) {
print('You are an adult.');
} else {
print('You are a minor.');
}
}void main() {
print('For loop:');
for (int i = 1; i <= 5; i++) {
stdout.write('$i ');
}
print('');
print('While loop:');
int j = 1;
while (j <= 5) {
stdout.write('$j ');
j++;
}
print('');
}int add(int a, int b) {
return a + b;
}
void main() {
print('Sum: ${add(10, 20)}');
}void main() {
List<int> numbers = [10, 20, 30, 40, 50];
for (int i = 0; i < numbers.length; i++) {
print('Element $i: ${numbers[i]}');
}
}void main() {
String str1 = 'Hello';
String str2 = ' World';
print('Length: ${str1.length}');
String combined = str1 + str2;
print('Concatenated: $combined');
print('Uppercase: ${combined.toUpperCase()}');
}void main() {
double a = 15.0, b = 4.0;
print('Add: ${a + b}');
print('Subtract: ${a - b}');
print('Multiply: ${a * b}');
print('Divide: ${a / b}');
}
