Array: An array is defined as a group that consists of similar data types. The array size must be specified by an “int” value and not long or short. In Java, all arrays are allocated dynamically. An array is always indexed, starting from 0. Binary Search: Binary search algorithm ’s strategy: The binary search algorithm is used to find an item in an array. The algorithm assumes that the item search array is sorted. The searching process starts at the middle of the array. In the searching process, the algorithm finds an item or eliminates half of the array in each comparison. If the search item is less than the middle item, then it eliminates the second half of the array and continues to search in the first half of the array. If the search item is greater than the middle item, then it eliminates the first half of the array, and it continues to search in the second half of the array. Once again, it examines the middle and repeats the above steps to find an item. If the middle item is equal to the search item, then the searching process is stopped. The search is stopped when an item is found or the search reaches the empty portion of the array.

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Chapter 7.10, Problem 7.10.2CP

Program Plan Intro

Array:

An array is defined as a group that consists of similar data types.

The array size must be specified by an “int” value and not long or short.

In Java, all arrays are allocated dynamically.

An array is always indexed, starting from 0.

Binary Search:

Binary search algorithm’s strategy:

The binary search algorithm is used to find an item in an array.

The algorithm assumes that the item search array is sorted.

The searching process starts at the middle of the array.

In the searching process, the algorithm finds an item or eliminates half of the array in each comparison.

If the search item is less than the middle item, then it eliminates the second half of the array and continues to search in the first half of the array.

If the search item is greater than the middle item, then it eliminates the first half of the array, and it continues to search in the second half of the array.

Once again, it examines the middle and repeats the above steps to find an item.

If the middle item is equal to the search item, then the searching process is stopped.

The search is stopped when an item is found or the search reaches the empty portion of the array.

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