The 32-bit Java int can go to a maximum of 2,147,483,647 ... Java arrays do not expand and contract. You can’t change the size of an array in Java once the array is initialized. How is a Java array’s ...

Java has a "Random" class that ... Random gen = new Random(); int randomNum= gen.nextInt(100); Add the random number to the array. The following code assigns the number generated in step three ...

Square brackets have to be used so that the compiler knows that numbers is an array-type. Names for arrays have to respect the usual Java variable ... there is no way to change it.

Another type of array in Java is the map. A map is an associative array that uses key/value pairs that do not change. This is a perfect way to store phone numbers, for example. Here, you might use ...