Implement A Two Nested Loop In Dart

Nested loops can be a bit confusing initially, but their implementation can significantly simplify problems dealing with multi-dimensional data. This article will walk you through the creation of a two-nested loop in Dart: a simple programming language, known for its simplicity and power.

Code snippet for Two Nested Loop in Dart

Let’s have a look at a sample code of a two-nested loop in Dart:

void main() {
  for(int i=0; i<3; i++) {
    for(int j=0; j<3; j++) {
      print('i: $i & j: $j');
    }
  }
}

Code Explanation for Two Nested Loop in Dart

This sample code illustrates how a two-nested loop operates within a Dart program. Let’s break it down for better understanding:

• void main() {} This is the entry point of the Dart program. The execution of the program starts from this function.

• for(int i=0; i<3; i++) {} This is the outer loop in our nested loop scenario. It initializes the variable ‘i’ to 0 and runs until the value of ‘i’ is less than 3, incrementing ‘i’ by 1 after each iteration.

• for(int j=0; j<3; j++) {} Inside the body of the outer loop, we have the inner loop. This loop initializes the variable ‘j’ to 0 and runs until the value of ‘j’ is less than 3, incrementing ‘j’ by 1 after each iteration.

• print('i: $i & j: $j'); In the body of the inner loop, we print out the values of ‘i’ and ‘j’. This acts as a way to track the iteration process of our two nested loops.

The outer loop will run three times, and for each iteration of the outer loop, the inner loop also runs three times. This results in nine iterations in total; hence, the print statement will be executed nine times.

Hence, a two-nested loop in Dart gives you the ability to execute a block of code or statement multiple times. This is particularly useful in scenarios where you need to work with multi-dimensional arrays and lists.