Timing array loop performance : Array « Collections Data Structure « Java

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Java » Collections Data Structure » Array   Timing array loop performance       public class TimeArray {   public static void main(String args[]) {     long startTime = System.currentTimeMillis();     for (int i = 0, n = Integer.MAX_VALUE; i < n; i++) {       ;     }     long midTime = System.currentTimeMillis();     for (int i = Integer.MAX_VALUE - 1; i >= 0;) {       ;     }     long endTime = System.currentTimeMillis();     System.out.println("Increasing: " + (midTime - startTime));     System.out.println("Decreasing: " + (endTime - midTime));   } }                                              Related examples in the same category 1. Initialize a static array 2. Initialization and re-assignment of arrays 3. Doubling the size of an array 4. Array 2D 5. Can you change the .length of an array 6. Show Two-Dimensional Array of Objects 7. ArrayListDemo done over using an ArrayList 8. Array Hunt game 9. Multi Dimension Array 10. Clone Array 11. Associates keys with values 12. Arrays of primitives 13. Creating arrays with new 14. Array initialization 15. Creating an array of nonprimitive objects 16. Create multidimension arrays 17. Initializing Array Values 18. Creating a Two-Dimensional Array 19. Initializing a Two Dimensional Array 20. Using the length Variable 21. Triangular array 22. Grow array 23. Define array for class 24. String array and output to console 25. Multiply two matrices 26. Array Of Arrays Demo 2 27. Array Copy Demo 28. Copying Elements from One Array to Another 29. Java program to demonstrate multidimensional arrays 30. Extend the size of an array 31. Copy an array 32. Initialize multidimensional array 33. Get array upperbound 34. To get the number of dimensions 35. Resize an array, System.arraycopy() 36. Dump array content: Convert the array to a List and then convert to String 37. java.utils.Arrays provides ways to dump the content of an array. 38. Dump multi-dimensional arrays 39. Use the new shorthand notation to iterate through an array 40. Create a repeated sequence of character 41. Reverse array elements order 42. Convert array of primitives into array of objects 43. Array Initializers 44. Reinitializes a byte array 45. Reinitializes an int array 46. Sum all elements in the array 47. Sums an array of numbers log(x1)...log(xn) 48. A class to iterate over all permutations of an array. 49. Palidrome Array 50. Set of utilities used to manipulate arrays. 51. ArrayUtils provides static methods for manipulating arrays when using a tool such as java.util.ArrayList is inconvenient. 52. Array Util 53. clone two dimensional array