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Using the Collection-Based for Loop with an Array

You can now use it to iterate over an array or a collection without the index. Use this syntax to iterate over an array: for (componentType variable: arrayName) Where arrayName is the reference to the array, componentType is the component type of the array, and variable is a variable that references each component of the array. import java.util.Arrays; public class MainClass {   public static void main(String[] arg) {     double[] data = new double[50]; // An array of 50 values of type double     Arrays.fill(data, 1.0);                     // Fill all elements of data with 1.0          for (double d: data) {        System.out.println(d);     }        } } 1.0 1.0