Help with Java: Single Dimensional Arrays

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QnaZna12

Programming

Description

The project  is asking me to create a code using single dimensional arrays to compute the weekly hours for each employee (there are 8). So I have to gather the hours each employee has worked in one week. Then I have to get the sum of the hours worked

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Explanation & Answer

You can declare a single-dimensional array of five integers as shown in the following example:

int[] array = new int[5];

This array contains the elements from array[0] to array[4]. The new operator is used to create the array and initialize the array elements to their default values. In this example, all the array elements are initialized to zero.

An array that stores string elements can be declared in the same way. For example:

string[] stringArray = new string[6];

It is possible to initialize an array upon declaration, in which case, the rank specifier is not needed because it is already supplied by the number of elements in the initialization list. For example:

int[] array1 = new int[] { 1, 3, 5, 7, 9 };

A string array can be initialized in the same way. The following is a declaration of a string array where each array element is initialized by a name of a day:

string[] weekDays = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };

When you initialize an array upon declaration, you can use the following shortcuts:

int[] array2 = { 1, 3, 5, 7, 9 };
string[] weekDays2 = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };

It is possible to declare an array variable without initialization, but you must use the new operator when you assign an array to this variable. For example:

int[] array3;
array3 = new int[] { 1, 3, 5, 7, 9 };   // OK 
//array3 = {1, 3, 5, 7, 9};   // Error

C# 3.0 introduces implicitly typed arrays. For more information, see Implicitly Typed Arrays (C# Programming Guide).



Anonymous
Just the thing I needed, saved me a lot of time.

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