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Programming in D: The Ultimate Guide for Software Engineers

An Array Example

Explore how arrays in D programming allow you to handle multiple values efficiently using loops. This lesson helps you understand iterating through array elements, enhancing code simplicity and scalability compared to using individual variables.

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Example code #

Let’s revisit the challenge where we printed the twice of the value, but this time we will print twice of five different values using an array:

D
import std.stdio;
void main() {
    // This variable is used as a loop counter
    int counter;
    // The definition of a fixed-length array of five
    // elements of type double
    double[5] values;
    // setting the values in a loop
    writeln("values");
    while (counter < values.length) {
    	values[counter]=counter*2;
        writeln(values[counter]);
        ++counter;
    }
    writeln("Twice the values:");
    counter = 0;
    while (counter < values.length) {
        writeln(values[counter] * 2);
        ++counter;
    }
    // The loop that calculates the fifths of the values would
    // be written similarly
}

Observations

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