Datatype Conversion.

Datatype Conversion.

It is sometimes beneficial to convert a value from one type of data to another. Each of the conversion functions converts its parameter to an equivalent representation within its datatype. The conversion functions include int(), float(), char(), byte(), and others.

size(640, 360);


char c;    // Chars are used for storing alphanumeric symbols
float f;   // Floats are decimal numbers
int i;     // Integers are values between 2,147,483,647 and -2147483648
byte b;    // Bytes are values between -128 and 128

c = 'A';
f = float(c);      // Sets f = 65.0
i = int(f * 1.4);  // Sets i to 91
b = byte(c / 2);   // Sets b to 32


text("The value of variable c is " + c, 50, 100);
text("The value of variable f is " + f, 50, 150);
text("The value of variable i is " + i, 50, 200);
text("The value of variable b is " + b, 50, 250);

Functions Used


Defines the dimension of the display window width and height in units of pixels

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The println() function writes to the console area, the black rectangle at the bottom of the Processing environment

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Datatype for integers, numbers without a decimal point

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Draws text to the screen

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Sets the current font that will be drawn with the text() function

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Datatype for bytes, 8 bits of information storing numerical values from 127 to -128

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Disables drawing the stroke (outline)

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Data type for floating-point numbers, e

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The background() function sets the color used for the background of the Processing window

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