Using the For-Each Loop with Collections: ArrayList : For Each Loop « Statement Control « Java Tutorial

1. Java Tutorial
2. Statement Control
3. For Each Loop

For-Each Loop can be used to any object that implements the Iterable interface. This includes all collections defined by the Collections Framework,

import java.util.ArrayList;
 
public class MainClass { 
    
  public static void main(String args[]) { 
    ArrayList<Double> list = new ArrayList<Double>();

    list.add(10.14);
    list.add(20.22);
    list.add(30.78);
    list.add(40.46);

    double sum = 0.0;
    for(double itr : list)
      sum = sum + itr;
    System.out.println(sum);
  
  } 
}

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