Given an array, x of references to objects that implement the Comparable interface, two int variables k and j that contain valid indices to x, write some statements that exchange (or swap) the contents of the elements referenced by the integers.

LANGUAGE: JAVA

CHALLENGE:

Given an array, x of references to objects that implement the Comparable interface, two int variables k and j that contain valid indices to x, write some statements that exchange (or swap) the contents of the elements referenced by the integers.

SOLUTION:

Comparable temp;
temp = x[k];
x[k] = x[j];
x[j] = temp;