The International Union for Conservation of Nature (IUCN) lists the American black bear as a least-concern species, due to its widespread distribution and a large population estimated to be twice that of all other bear species combined. It typically lives in largely forested areas, but will leave forests in search of food, and is sometimes attracted to human communities due to the immediate availability of food. The American black bear is an omnivore, with a diet varying greatly depending on season and location. It is the continent's smallest and most widely distributed bear species. ** Doubles the first 5 elements of the array */įor (int i = 0 i < values.The American black bear ( Ursus americanus), also known as the black bear, is a species of medium-sized bear endemic to North America. What will the following code print out? Can you write a similar method called tripleFirstFour() that triples the first 4 elements of the array? Make sure you test it in main. It is created in the constructor and changed or accessed by the methods. Notice that it uses a complex conditional ( &) on line 14 to make sure that the loop doesn’t go beyond the length of the array, because if you had an array that had less than 5 elements, you wouldn’t want the code to try to double the 5th element which doesn’t exist! Notice that in this code, the array is a private instance variable of the class ArrayWorker. The following code doubles the first five elements in an array.

You can loop through just some of the elements of an array using a for loop. You don’t have to loop through all of the elements of an array. You must start at the length of the array minus one.

You can not start the index at the length of the array.

The method will only return -1 if no value in the array is less than the passed value.

You can also follow it in the visualizer by clicking on the Show Code Lens button. What do you think the following code will print out? First trace through it on paper keeping track of the array and the index variable.

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