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 ...

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 ...

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.