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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[] args) throws java.lang.Exception
  11. 	{
  12. 		int valorInicial = 3;
  13. 		int n = 7;
  14. 		ArrayList<Integer> lista = new ArrayList<>();
  15. 		// usando math
  16. 		for(int i = valorInicial; i <= n; i++){
  17. 			lista.add((int)Math.pow(i,2));
  18. 		}
  19. 		System.out.print("Usando Math: ");
  20. 		for(Integer num : lista){
  21. 			System.out.print(num + " ");
  22. 		}
  23. 		//simbolico, apenas para reaproveitar o mesmo ArrayList
  24. 		lista.clear();
  25. 		System.out.println();
  26. 		//sem usar math
  27. 		for(int i = valorInicial; i <= n; i++){
  28. 			lista.add(i*i);
  29. 		}
  30. 		System.out.print("Sem usar Math: ");
  31. 		for(Integer num : lista){
  32. 			System.out.print(num + " ");
  33. 		}
  34.  
  35. 	}
  36. }
Success #stdin #stdout 0.1s 320576KB
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stdin
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Standard input is empty
stdout
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Usando Math: 9 16 25 36 49 
Sem usar Math: 9 16 25 36 49
https://ideone.com/TL4GPG
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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