Shuffling Arrays

Poem.java

BallBox box = new BallBox(poem.length); shuffledPoem = new String[poem.length]; for (int index = 0; index < poem.length; ++index) { shuffledPoem[index] = poem[box.nextBall()]; }

Shuffling keeps all components of an array but puts them into some random order.

poem is an array that stores a poem, using a String component for each line.

length is a public attribute of all arrays that represents the length of an array. This is the number of lines in this example.

We set up a ballbox containing all indices of poem from 0 to poem.length - 1.

Now we draw all balls in random order and fill shuffledPoem subsequently with those lines of poem that correspond to the ball drawn.

	Shuffling keeps all components of an array but puts them into some random order.
	`poem` is an array that stores a poem, using a `String` component for each line.
	`length` is a public attribute of all arrays that represents the length of an array. This is the number of lines in this example.
	We set up a ballbox containing all indices of `poem` from `0` to `poem.length - 1`.
	Now we draw all balls in random order and fill `shuffledPoem` subsequently with those lines of `poem` that correspond to the ball drawn.