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Return Type	Function
`void`	`print(Object obj)` Prints any object to the screen.
`void`	`println(Object obj)` Prints any object to the screen then goes to new line.

Return Type	Function
`String`	`readString()` `readString(String text)` `text` : optional text to display on the input frame. Returns the String value of a keybord entry.
`Double`	`readDouble()` `readDouble(String text)` `text` : optional text to display on the input frame. Returns the Double value of a keybord entry.
`Integer`	`readInt()` `readInteger()` `readInt(String text)` `readInteger(String text)` `text` : optional text to display on the input frame. Returns the Integer value of a keybord entry.
`Long`	`readLong()` `readLong(String text)` `text` : optional text to display on the input frame. Returns the Long value of a keybord entry.
`Float`	`readFloat()` `readFloat(String text)` `text` : optional text to display on the input frame. Returns the Float value of a keybord entry.
`Boolean`	`readBoolean()` `readBoolean(String text)` `text` : optional text to display on the input frame. Returns the Boolean value of a keybord entry.
`Char`	`readChar()` `readCharacter()` `readChar(String text)` `readCharacter(String text)` `text` : optional text to display on the input frame. Returns the Char value of a keybord entry.

Return Type	Function
`void`	`sleep(int sleepingTime)` Stops the execution of the program during `sleepingTime` period in milliseconds.
`int`	`random(int min, int max)` Returns a random value between `min` included and `max` excluded.
`boolean`	`equal(String s1, String s2)` Returns `true` if the value of `s1` is exactly the same as `s2`, returns `false` if not.

Return Type	Function
`void`	`reset(int w, int h)` Creates a drawing window of width=`w` and height=`h`.
`int`	`getWidth()` Returns the width value of the drawing window.
`int`	`getHeight()` Returns the height value of the drawing window.
`boolean`	`setPixel(int x, int y, String color)` Draws a point with a defined `color` at the coordinates (`x`, `y`). `color`: a color string that can be one of [black, blue, cyan, grey, green, magenta, orange, red, white, yellow, pink] Returns `true` if the point is inside of the boundaries of the drawing window, returns `false` if not.
`boolean`	`setPixel(int x, int y, int alpha)` Draws a point with a defined shade of grey at the coordinates (`x`, `y`). `alpha`: defines the shade of grey value ( min = 0 for black; max = 255 for white). Returns `true` if the point is inside of the boundaries of the drawing window, returns `false` if not.
`boolean`	`setPixel(int x, int y, int r, int g, int b)` Draws a point with a defined rgb color at the coordinates (`x`, `y`). `r`: Red value between 0 and 255. `g`: Green value between 0 and 255. `b`: Blue value between 0 and 255. Returns `true` if the point is inside of the boundaries of the drawing window, returns `false` if not.