现有如下程序:{
List<String> students = new ArrayList<String>();
students.add("Alex");
students.add("Bob");
students.add("Carl");
for(int k = 0; k < students.size(); k++)
{
System.out.print(students.set(k, "Alex") + " ");
}
System.out.println();
for(String str :students)
{
System.out.print(str + " ");
}
请问,若执行以上代码的输出为?
}(1.0)