To avoid the Java RuntimeException completely, declare the array as the least generic type, which in this case would be Double. The Java RuntimeException is only one of many different types of bugs ...

Java’s collections like arrays and lists are foundational building blocks. Functional programming techniques are at times the ideal way to work with these collections.

Take your coding to the next level by learning advanced programming with generics. Here's how to use generic methods with type inference, type parameters, and wildcards in your Java programs.

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This free to download 6th edition translates all this foreign programming and computer syntax into plain English, along with plenty of helpful examples and tips. Get yours before the offer expires!