As noted in the comments, Java arrays employ C-like zero-based indexes and so using an index of 0 obtains the first element. /** * Extract the first element from the provided List of Strings.

Classes and objects in Java must be initialized before they ... Consider Listing 5. Listing 5. Initializing arrays of sine and cosine values class Graphics { static double[] sines, cosines ...

You use the Java array’s length property to print out its size: When you initialize Java arrays with the new keyword ... To further confuse matters, the String class does have a length() method. The ...

Initialize the Java array to a non-null value. Use the length property of the array to get its size. Hold the value of the Java array length in a variable for future use. The length property of a Java ...

Names for arrays have to respect the usual Java variable naming conventions. Of course, you not only want to store data inside an array but also read from it. In order to access individual array ...

An array in Java is a type of variable that can store multiple values. It stores these values based on a key that can be used to subsequently look up that information. Arrays can be useful for ...