To use it just make sure the tools directory is in the same directory as your program and
import tools.*;
getFactors(int n) returns vector of all factors (non proper) of n.
getFactors(int n, true) returns vector of all proper divisors of n.
getPrimes(int n) returns array of all prime numbers <= n.
isPrime(int n) returns true if n is prime, else false.
binaryCount(int n) returns array of every binary number <= n.
factorial(int n) returns n!
permutations(int[] arr, lim) returns two dimensional array of all (or s if s != -1) permutations of objects in arr.
s(T s) literally System.out.print(s)
sln(T s) literally System.out.println(s)
array(int[][] arrarr) prints 2d int array
array(int[] arr) prints int array
array(T[][] arrarr) prints 2d T array
array(T[] arr) prints T array
triangle(int[][] t, int[] path) prints a triangle of numbers t, with an index path path highlighted
swap(T[],int i, int j) returns a T array with elements i and j switched
swap(int[],int i, int j) returns an int array with elements i and j switched
size(int[] arr) returns sorted (by size) copy of arr
size(int[] base, int[] secondary) returns sorted (by size of base) copy of secondary
reverse(int[] arr) returns reversed copy of arr
maxVal(int[][] arrarr) returns largest value in 2d array arrarr
maxVal(int[] arr) returns largest value in array arr
sum(int[] arr) returns sum of elements in arr
alphabetical(String[] sarr) returns sorted (alphabetically) copy of sarr
compareWords(String a, String b) returns true if a is before b in alphabet
Timer() creates new timer object
start() sets a start time
stop() sets an end time
getTime() returns current elapsed time of timer (nanoseconds).
printTime() prints the elapsed time in nanoseconds and seconds