how to iterate through list opf objects code example

Example 1: java go troght loop object

import java.util.List;
import java.util.ArrayList;

List<String> list = new ArrayList<>();

list.add("first");
list.add("last");

for(String s : list) {
  if (s != null) {
    //do whaterver wanted
    // example:
    System.out.println(s);
  }
}

Example 2: traversal of list in java

import java.util.ArrayList;
import java.util.Iterator;

public class IteratorSample {
   public static void main(String[] args) {
      ArrayList<String> list = new ArrayList<String>();
      list.add("JavaFx");
      list.add("Java");
      list.add("WebGL");
      list.add("OpenCV");
      Iterator iterator = list.iterator();
      while(iterator.hasNext()) {
         System.out.println(iterator.next());
      }
   }
}