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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. 		List l = new ArrayList();
  13. 		l.add(1);
  14. 		l.add("hallo");
  15. 		Object m = Collections.max(l);
  16. 	}
  17. }
Runtime error #stdin #stdout #stderr 0.11s 320576KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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Exception in thread "main" java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
	at java.lang.String.compareTo(String.java:111)
	at java.util.Collections.max(Collections.java:673)
	at Ideone.main(Main.java:15)
https://ideone.com/MycFsz
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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