Today we were introduced to the Processing programming language (http://www.processing.org).
Working through six practical tasks, we became familiar with:
- Declaring variables names and their types e.g. String, int and float
- Assigning values to variables
- Performing calculations using mathematical operators e.g. addition and multiplication
- Outputting to the console, including concatenation
- Commenting code
The final Procesing code produced was:
// Declare variables:
String forename;
char gender;
int age;
float feet;
int numberOfDays;
int numberOfHours;
int numberOfMinutes;
int numberOfMinutesTo;
int numberOfHoursTo;
// Assign variables:
forename = "Matthew";
gender = 'M';
age = 44;
feet = 6.0;
// Set number of days since last birthday and calculate hours and minutes this equates to
numberOfDays = 1;
numberOfHours = numberOfDays * 24;
numberOfMinutes = numberOfHours * 60;
// Calculate hours and minutes to next birthday based on 365 minus number of days since last birthday
numberOfHoursTo = (365-numberOfDays) * 24;
numberOfMinutesTo = numberOfHoursTo * 60;
// Print output with inline calculations
println(forename + " is " + gender + " and is " + age + " years old.");
println(forename + " is " + feet*0.3048 + " metres tall.");
println("The number of days since my last birthday is: " + numberOfDays);
println("The number of days until my next birthday is: " + (365-numberOfDays));
println("");
// Insert tab with '\t' character
println("\t\tWeeks,\tDays\tHours\tSeconds");
println("Since last birthday\t" + (numberOfDays/7) + "\t" + numberOfDays + "\t" + numberOfHours + "\t" + (numberOfMinutes * 60));
println("Until next birthday\t" + (365-numberOfDays)/7 + "\t" + (365-numberOfDays) + "\t" + numberOfHoursTo + "\t" + (numberOfMinutesTo * 60));