Common functions for Java arrays

1 ImportJava.util.*;2 classarray index {3      Public Static voidMain (String args[]) {4           //tools for use in arrays: Arrays5           int[] arr = {1,2,3,4};6           //finds if there is a number in the array7           intnum = 3;8           //If you have one, print the corresponding index9           intresult =Arrays.binarysearch (arr,num);TenSystem.out.println ("the corresponding index value is as follows:"); One System.out.println (result); A  -System.out.println ("Ascending order is as follows:"); -           int[] arr1 = {6,4,5,2}; the Arrays.sort (arr1); -            for(inti:arr1) - System.out.println (i); -            +System.out.println ("Sort the array in reverse order as follows:"); -Arraylist<integer> list2=NewArraylist<integer>(); +            for(inti=1;i<=5;i++){ A List2.add (i); at                 } - Collections.reverse (list2); -           //list2.size (); Indicates the length of the array -            for(inti:list2) - System.out.println (i);  -       } in}

Common functions for Java arrays