Week9Chap7-I - Chapter 7 Arrays Janaka Balasooriya CSE 110...

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Janaka Balasooriya CSE 110, Arizona State University Chapter 7 Arrays
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Janaka Balasooriya CSE 100, Arizona State University From the Last Lecture: Requirement to Store More Than One Data Item in a Variable Suppose we need to store exam 1 grades of CSE110 students. How do we tackle this problem? declare a variable for each student. int student1Score; int student2Score; int student3Score; This is not a good strategy as we need large number of variables. Thus, it is convenient to have a one data structure that can store all exam 1 scores. => Array Arrays can store more than one data value at a given time.
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Janaka Balasooriya CSE 110, Arizona State University Arrays: From the Last Lecture • Arrays can store more than one data value at a given time. It has fixed number of elements of the same data type. Syntax of Declaring an Array: dataType [] arrayName = new dataType [number_of_elements] Example: int[] scores = new int[5]; First item Second item Fifth item
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Janaka Balasooriya CSE 100, Arizona State University
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