Jonathan Mousley Jonathan Mousley - 4 months ago 10
Java Question

How can I pass List in my method parameter?

Can someone explain how to define a List parameter such that i can pass a List to it. My method looks something like this. I need LIST to be replaced so the method recognizes "listname" as a list.

public static void function(int number, LIST listname) {
for (int i = 0; i < listname.size(); ++i {
System.out.print(listname.get(i) + ": ");
}
System.out.println(number);
}


In my main method I will call on the method as such:

List<String> myList = new ArrayList<String>();
myList.add("item1");
myList.add("item2");
myList.add("item3");

function(4, myList);

Answer

Change the Method Definition to as following

public static void function(int number, List<String> listname) {
  for (int i = 0; i < listname.size(); ++i {
    System.out.print(listname.get(i) + ": ");
  }
  System.out.println(number);
}