for object in list java code example

Example 1: java how to iterate through a arraylist

// Using Classic For Loop
for (int i=0; i<myArrayList.size(); i++) {
    System.out.println(myArrayList.get(i));
}
/*****************************************************/
//Advanced For Loop - ArrayList<String> 
for(String str : myArrayList) {
    System.out.println(str);
}
/*****************************************************/
//Using Iterator
Iterator arrayListIterator = myArrayList.iterator();
while (arrayListIterator.hasNext()) {
    System.out.println(arrayListIterator.next());
}
/*****************************************************/
//ForEach - java 8 - ArrayList<String>
myArrayList.forEach( str -> System.out.println(str));

Example 2: 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);
  }
}