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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. 		HashMap<String, List<String>> seatMap = new HashMap<String, List<String>>();
  13.  
  14. 		String k = null;     
  15. 		for(int i=1; i<8;i++){
  16. 			List<String> seats = new ArrayList<String>();
  17. 			seats.add("A");
  18. 			seats.add("B");
  19. 			seats.add("C");
  20. 			seats.add("D");
  21.  
  22. 		    k = Integer.toString(i);
  23. 		    seatMap.put(k, seats);
  24. 		}
  25.  
  26. 		 for(Map.Entry<String, List<String>> entry : seatMap.entrySet()){
  27. 		     String key= entry.getKey();
  28. 		     List<String> values = entry.getValue();
  29.  
  30. 		     System.out.println(key+"  "+values.get(0)+values.get(1)+"  "+values.get(2)+values.get(3));
  31. 		 }
  32.  
  33. 		 int key = 1, index = 2;
  34. 		 seatMap.get(Integer.toString(key)).set(2, "X");
  35.  
  36. 		 for(Map.Entry<String, List<String>> entry : seatMap.entrySet()){
  37. 		     String key1 = entry.getKey();
  38. 		     List<String> values = entry.getValue();
  39. 		     System.out.println(key1 +"  "+values.get(0)+values.get(1)+"  "+values.get(2)+values.get(3));
  40. 		 }
  41. 	}
  42. }
Success #stdin #stdout 0.09s 320576KB
comments (?)
stdin 
Standard input is empty
stdout 
1  AB  CD
2  AB  CD
3  AB  CD
4  AB  CD
5  AB  CD
6  AB  CD
7  AB  CD
1  AB  XD
2  AB  CD
3  AB  CD
4  AB  CD
5  AB  CD
6  AB  CD
7  AB  CD
https://ideone.com/LAKtO7
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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