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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. public static void main(String argv[]) {
  11.     List<String> list = new ArrayList<String>();
  12.     list.add("a");
  13.     list.add("a");
  14.     list.add("a");
  15.     list.add("a");
  16.     list.add("a");
  17.     list.add("a");
  18.     list.add("b");
  19.  
  20.     long startTime = System.nanoTime();
  21.     for(int i=0; i < list.size(); i++){
  22.         if(list.get(i).equals("b"))
  23.             break;
  24.     }
  25.     long endTime = System.nanoTime();
  26.  
  27.     long duration = endTime - startTime;
  28.     System.out.println("Second run: "+duration);
  29.  
  30. 	startTime = System.nanoTime();
  31.     list.contains("b");
  32.     endTime = System.nanoTime();
  33.  
  34.      duration = endTime - startTime;
  35.  
  36.     System.out.println("First run: "+duration);
  37.  
  38.     startTime = System.nanoTime();
  39.  
  40. }
  41. }
Success #stdin #stdout 0.07s 380224KB
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stdin
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Standard input is empty
stdout
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Second run: 13947
First run: 14037
https://ideone.com/HGNKQF
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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