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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.       List<String> l = new ArrayList<>();
  9.       l.add(0, "Hello");
  10.       l.add(1, "World");
  11.  
  12.       for(String s : l) System.out.print(s + " ");
  13.       System.out.println("");
  14.  
  15.       reverse(l);
  16.  
  17.       for(String s : l) System.out.print(s + " ");
  18.       System.out.println("");
  19.    }
  20.  
  21.    public static <E> void reverse(List<E> list) {
  22.       E temp = null;
  23.       List<E> out = new ArrayList<E>();
  24.       for (int i=0;i<list.size()/2;i++) {
  25.           temp = list.get(i);
  26.           list.set(i, list.get(list.size()-i-1));
  27.           list.set(list.size()-i-1, temp);
  28.       }
  29. 	}
  30. }
  31.  
Success #stdin #stdout 0.1s 35780KB
comments (?)
stdin
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Standard input is empty
stdout
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Hello World 
World Hello
https://ideone.com/t6Lxvj
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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