Dart program to convert hexadecimal to integer

Dart program to convert hexadecimal to integer:

In this post, we will learn how to convert one hexadecimal value to an integer value in dart. Dart integer class provides one parse method that we can use to convert a hexadecimal value to integer.

This post will show you how to convert hexadecimal to integer value using parse.

Definition of parse:

The parse method is defined as below:

int parse(String sourceValue {, int radix})

This method is used to convert one string value to integer. The radix value can be anything from 2 to 36. For hexadecimal values, we can use 16 as radix. This will convert hexadecimal to integer.

Example of parsing hexadecimal values:

Let’s consider the below example:

void main() {
  String string_1 = "AA";
  String string_2 = "3E8";
  String string_3 = "EEE";

  print("string_1 ${int.parse(string_1, radix: 16)}");
  print("string_2 ${int.parse(string_2, radix: 16)}");
  print("string_3 ${int.parse(string_3, radix: 16)}");
}

It prints the below output:

string_1 170
string_2 1000
string_3 3822

We can also use 0x at the start of the hexadecimal values. In that case, we don’t have to pass the radix value.

void main() {
  String string_1 = "0xAA";
  String string_2 = "0x3E8";
  String string_3 = "0xEEE";

  print("string_1 ${int.parse(string_1)}");
  print("string_2 ${int.parse(string_2)}");
  print("string_3 ${int.parse(string_3)}");
}

It prints the same output.

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Dart program to convert hexadecimal to integer