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Operators and Variables in Java

The purpose of this assessment is to identify the usage of a variable that allows you to store a sequence of similar values and provide quick access to each of these values individually.

Suppose you have to write a program for storing the grades of 100 students of a college. Which one of the following code fragments will enable you to declare variables to store 100 different values?

  1. int[] a = new[100];for (int i=0; i<=100; i++)a[i]=i + 1;int a[100];
  2. int[] a = new int[100];for (int i=0; i<100; i++)a[i]=i + 1;
  3. int a1, a2, a3, a4, a5 …. A100;a1 = 1;a2=2;a3 = 3;a4 =4;a5 = 5;………A100 =100;
  • Support your selection with a rationale.
  • Discuss the errors or shortcomings in the incorrect code examples and identify ways to fix them.
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