Part of my assignment is to make a program where the user chooses 1 of the 7 basic running times and an example program is executed for that running time. Pardon my style as I have not programmed in Java for quite some time...
for now I'm just working with linear and constant... My problem is that each step takes less than a millisecond to execute so it comes out with just 0s. I need to find a way to make it wait. Please help, thanks in advance.import java.util.Scanner; class Runtimes { public static void main(String[]args) { String choice; Scanner scan = new Scanner(System.in); System.out.println("Enter one of the following:\n 'a' : constant.\n 'b': logarithmic \n 'c': linear\n 'd': n log n\n 'e': quadratic\n 'f': cubic\n 'g': exponential"); choice = scan.nextLine(); long start, end, elapsed; if(choice.equals("a")) { int test; for(int i = 0; i < 10; i++) { start = System.currentTimeMillis(); test = 5 + 8 * 4 + 7; end = System.currentTimeMillis(); System.out.println( "n = " + i + "elapsed time: " + (end - start)); } } if(choice.equals("b")) { start = System.currentTimeMillis(); end = System.currentTimeMillis(); } if(choice.equals("c")) { for(int i = 1; i < 10; i++) { int [] numbers = new int[i]; start = System.currentTimeMillis(); for(int j = 0; j < i; j++) { } end = System.currentTimeMillis(); System.out.println( "n = " + i + "elapsed time: " + (end - start)); } } if(choice.equals("d")) { start = System.currentTimeMillis(); end = System.currentTimeMillis(); } if(choice.equals("e")) { start = System.currentTimeMillis(); end = System.currentTimeMillis(); } if(choice.equals("f")) { start = System.currentTimeMillis(); end = System.currentTimeMillis(); } if(choice.equals("g")) { start = System.currentTimeMillis(); end = System.currentTimeMillis(); } } }