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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		int[] array = {1, 2, 3};
  10.  
  11. 		if(array == null || array.length == 0){
  12. 			System.out.println("配列の要素はありません");
  13. 		} else {
  14. 			System.out.println(array.length);
  15. 		}
  16. 	}
  17. }
Success #stdin #stdout 0.04s 2184192KB
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Standard input is empty
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配列の要素はありません
https://ideone.com/Lcigdj
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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