D.ershane Solutions Ddili.org

Formatted Output

  1. We have already seen that this is trivial with format specifiers:
    import std.stdio;
    
    void main() {
        writeln("(Enter 0 to exit the program.)");
    
        while (true) {
            write("Please enter a number: ");
            long number;
            readf(" %s", &number);
    
            if (number == 0) {
                break;
            }
    
            writefln("%1$d <=> %1$#x", number);
        }
    }
    
  2. Remembering that the % character must appear twice in the format string to be printed as itself:
    import std.stdio;
    
    void main() {
        write("Please enter the percentage value: ");
        double percentage;
        readf(" %s", &percentage);
    
        writefln("%%%.2f", percentage);
    }