Arrays

Lotto.java

// Ask user for MAX_SELECT numbers out of [1..MAX_NUMBERS] int[] selectedNumbers = new int[MAX_SELECT]; // by the user for (int index = 0; index < MAX_SELECT; ++index) { int selected = RitIo.getInteger("Number " + (index + 1) + ": "); selectedNumbers[index] = selected; }

Arrays are objects that contain a number of variables that are all of the same type.

The variables of an array are called components.

The number of components in an array is called its length.

Like objects, arrays are dynamically created using the new operator and at that time the length must be decided upon.

The components of an array have no individual names but are addressed by index numbers from 0 to n - 1 if n is the length of the array.

Declaration Syntax: Component Type []

Expression Syntax: Expression [ IndexExpression ]

Indices must be of type int, short, byte, or char.

	Arrays are objects that contain a number of variables that are all of the same type.
	The variables of an array are called components.
	The number of components in an array is called its length.
	Like objects, arrays are dynamically created using the new operator and at that time the length must be decided upon.
	The components of an array have no individual names but are addressed by index numbers from 0 to n - 1 if n is the length of the array.
	Declaration Syntax: Component Type `[]`
	Expression Syntax: Expression `[` IndexExpression `]`
	Indices must be of type int, short, byte, or char.