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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. 		// your code goes here
  13. 		List<String> list1 = new ArrayList<>(List.of("c", "e"));
  14.         List<String> list2 = new ArrayList<>(List.of("c", "e", "f"));
  15.  
  16.         List<String> intersection = new ArrayList<>(list1);
  17.         intersection.removeAll(list2);
  18.  
  19.         System.out.println("List1: " + list1);
  20.         System.out.println("List2: " + list2);
  21.         System.out.println("差分: " + intersection); // 出力: [c, e]
  22. 	}
  23. }
Success #stdin #stdout 0.12s 57480KB
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stdin
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Standard input is empty
stdout
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List1: [c, e]
List2: [c, e, f]
差分: []
https://ideone.com/N4BXKv
language:
Java (HotSpot 12)
created:
4 days ago
visibility:
public

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