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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.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10.  
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		int reps = 100000;
  14. 		Map<String, String> map = null;
  15. 		//warmup
  16. 		for (int i = 0; i < reps; i++){
  17. 			map = simple();
  18. 		}
  19. 		long start = System.currentTimeMillis();
  20. 		for (int i = 0; i < reps; i++){
  21. 			map = simple();
  22. 		}
  23. 		long stop = System.currentTimeMillis();
  24. 		System.out.println(stop - start);
  25. 		//warmup
  26. 		for (int i = 0; i < reps; i++){
  27. 			map = convoluted();
  28. 		}
  29. 		start = System.currentTimeMillis();
  30. 		for (int i = 0; i < reps; i++){
  31. 			map = convoluted();
  32. 		}
  33. 		stop = System.currentTimeMillis();
  34. 		System.out.println(stop - start);
  35.  
  36. 		System.out.println(map);
  37. 	}
  38.  
  39. 	private static Map<String, String> convoluted() {
  40. 		String test = "pet:cat::car:honda::location:Japan::food:sushi";
  41. 		boolean stateiskey = true;
  42.  
  43. 		Map<String, String> map = new HashMap<>();
  44. 		int keystart = 0;
  45. 		int keyend = 0;
  46. 		int valuestart = 0;
  47. 		int valueend = 0;
  48.  
  49. 		for(int i = 0; i < test.length(); i++){
  50. 			char nextchar = test.charAt(i);
  51.   			if (stateiskey) {
  52. 	    		if (nextchar == ':') {
  53. 	              keyend = i;			
  54. 	              stateiskey = false;
  55. 	              valuestart = i + 1;
  56. 	    		}
  57.   			} else {
  58.   				if (i == test.length() - 1 || (nextchar == ':' && test.charAt(i + 1) == ':')) {
  59.   					valueend = i;
  60.   					if (i + 1 == test.length()) valueend += 1; //compensate one for the end of the string
  61.   					String key = test.substring(keystart, keyend);
  62.   					String value = test.substring(valuestart, valueend);
  63.   					keystart = i + 2;
  64.   					map.put(key, value);
  65.   					i++;
  66.   					stateiskey = true;
  67.   				}
  68.   			}
  69. 		}
  70. 		return map;
  71. 	}
  72.  
  73. 	private static Map<String, String> simple(){
  74. 		Map<String, String> map = new HashMap<String, String>();
  75. 		String test = "pet:cat::car:honda::location:Japan::food:sushi";
  76. 		String[] test1 = test.split("::");
  77.  
  78. 		for (String s : test1) {
  79.     		String[] t = s.split(":");
  80.     		map.put(t[0], t[1]);
  81. 		}
  82. 		return map;
  83. 	}
  84. }
Success #stdin #stdout 1.19s 320640KB
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Standard input is empty
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415
99
{car=honda, location=Japan, pet=cat, food=sushi}
https://ideone.com/8T7twy
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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