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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.util.concurrent.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		int loopCount = 1000000;
  14. 		int i;
  15.  
  16. 		//Benchmark variables
  17. 		long startTime;
  18. 		long totalStringTime = 0;
  19. 		long totalRunnableTime = 0;
  20.  
  21.  
  22. 		//Perform warm up, make some objects
  23. 		for (i = 0; i < 1000; i++) {
  24. 			String warm = "log" + i;
  25. 			final int j = i;
  26. 			Runnable up = () -> { String log = "log" + j; };
  27. 			long time = System.nanoTime();
  28. 		}
  29.  
  30. 		//Measure string time
  31. 		startTime = System.nanoTime();
  32. 		for (i = 0; i < loopCount; i++) {
  33. 			String test = "log" + i;
  34. 		}
  35. 		totalStringTime = System.nanoTime() - startTime;
  36.  
  37. 		//Measure Runnable time
  38. 		startTime = System.nanoTime();
  39. 		for (i = 0; i < loopCount; i++) {
  40. 			final int j = i;
  41. 			Runnable up = () -> { String log = "log" + j; };
  42. 		}
  43. 		totalRunnableTime = System.nanoTime() - startTime;
  44.  
  45.  
  46. 		System.out.println("String Time: \t" + totalStringTime);
  47. 		System.out.println("Runnable Time: \t" + totalRunnableTime);
  48. 	}
  49. }
Success #stdin #stdout 0.41s 320640KB
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String Time: 	173341275
Runnable Time: 	27338650
https://ideone.com/sxUvyG
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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