(2) Loop In List

List<String> names = ['Ali', 'Omar', 'Sara'];

for (int i = 0; i < names.length; i++) {
  print('Name at index $i is ${names[i]}');
}

for (var name in names) {
  print('Name: $name');
}

int i = 0;
while (i < names.length) {
  print('Name: ${names[i]}');
  i++;
}

int i = 0;
do {
  print('Name: ${names[i]}');
  i++;
} while (i < names.length);

names.forEach((name) {
  print('Name: $name');
});

int totalLength = 0;
for (var name in names) {
  totalLength += name.length;
}
print('Total length: $totalLength');

List<int> numbers = [3, 7, 1, 9, 4, 6];

int sum = 0;
for (int num in numbers) {
  sum += num;
}
print('Sum = $sum');  // الناتج: Sum = 30

for (int num in numbers) {
  if (num % 2 == 0) {
    print('Even: $num');
  }
}

List<int> oddNumbers = [];

for (int num in numbers) {
  if (num % 2 != 0) {
    oddNumbers.add(num);
  }
}

print('Odd numbers: $oddNumbers');  // [3, 7, 1, 9]

List<int> doubled = [];

for (int num in numbers) {
  doubled.add(num * 2);
}

print('Doubled: $doubled');  // [6, 14, 2, 18, 8, 12]

int max = numbers[0];

for (int num in numbers) {
  if (num > max) {
    max = num;
  }
}

print('Max: $max');  // 9

numbers.forEach((num) {
  if (num > 5) {
    print('Greater than 5: $num');
  }
});

numbers.removeWhere((num) => num < 5);
print(numbers);  // [7, 9, 6]

int total = numbers.reduce((a, b) => a + b);
print('Total with reduce: $total');

int min = numbers[0];

for (int num in numbers) {
  if (num < min) {
    min = num;
  }
}
print('Min: $min');

for (int num in numbers) {
  if (num > 5) {
    print('Found: $num');
    break;
  }
}

List<String> fruits = ['Apple', 'Banana', 'Orange'];

fruits[1] = 'Mango';  // استبدال العنصر الثاني

print(fruits);  // [Apple, Mango, Orange]

List<int> numbers = [3, 8, 2, 9, 1];

for (int i = 0; i < numbers.length; i++) {
  if (numbers[i] > 5) {
    numbers[i] = 0;
  }
}

print(numbers);  // [3, 0, 2, 0, 1]

List<int> original = [1, 2, 3];
List<int> doubled = original.map((num) => num * 2).toList();

print(doubled);  // [2, 4, 6]

List<String> names = ['Ali', 'Sara', 'Omar'];
List<String> unknowns = names.map((name) => 'Unknown').toList();

print(unknowns);  // [Unknown, Unknown, Unknown]

List<int> numbers = [5, 7, 3, 7];

int index = numbers.indexOf(7);
if (index != -1) {
  numbers[index] = 99;
}

print(numbers);  // [5, 99, 3, 7]

List<int> numbers = [5, 7, 3, 7, 7];

for (int i = 0; i < numbers.length; i++) {
  if (numbers[i] == 7) {
    numbers[i] = 0;
  }
}

print(numbers);  // [5, 0, 3, 0, 0]

List<String> names = ['Ali', 'Omar', 'Sara', 'Lina'];
names.replaceRange(1, 3, ['Ahmed', 'Nora']);  // تستبدل العناصر من index 1 إلى قبل 3

print(names);  // [Ali, Ahmed, Nora, Lina]