Can Make Arithmetic Progression From Sequence.java

// Runtime: 2 ms (Top 91.15%) | Memory: 43.1 MB (Top 10.07%)
class Solution {
    public boolean canMakeArithmeticProgression(int[] arr) {
        if(arr.length < 1)
            return false;
        Arrays.sort(arr);
        int diff = arr[1]-arr[0];
        for(int i=1;i<arr.length-1;i++){
            if(arr[i+1]-arr[i]!=diff){
                return false;
            }
        }
        return true;
    }
}