import java. util. Arrays; import java. util. Collections; import java. util. List; public class ShuffleArray { public static void main (String[ ] args) { Integer intArray = { 1, 2, 3, 4, 5, 6, 7}; List intList = Arrays.asList(intArray); Collections . shuffle(intList) ; intList. toArray (intArray) ; System. out . println(Arrays . toString(intArray) )