JAVA BAT : Array 1 Problems

In Array 1 section, these are simple Array based problems in which there is no use of loops to solve the problems. To solve these problems we should use simple array methods for example:

arr[0], arr[1].......a[n] to access the elements of array.
arr.length to get the number of elements in array.
int[] arr = int[n] to initialize array of n integers (n is length for array)
int[] num = {1,2,3,4};  to initialize array in which element of array will be 1,2,3 and 4

Array 1 Problems:

firstLast6	sameFirstLast	makePi
commonEnd	sum3	rotateLeft3
reverse3	maxEnd3	sum2
middleWay	makeEnds	has23
no23	makeLast	double23
fix23	start1	biggerTwo
makeMiddle	plusTwo	swapEnds
midThree	maxTriple	frontPiece
unlucky1	make2	front11