/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		List<Integer> list = Arrays.asList(0, 1);
 
                                      Integer tmp2 = list.get(0);
    Integer tmp1 = list.get(0);
                                      list.set(0, list.get(1));
                                      list.set(1, tmp2);
    list.set(0, list.get(1));
    list.set(1, tmp1);
 
    System.out.println(list);
	}
}

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