Write Code Segments that Require One-Dimensional Arrays and iteration.

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• Learn: Iterate Over Array

Your Turn

• Write program code to complete the provided tasks.
• Run the code in the Java Playground to see if your code generates the desired result.
• Make necessary changes until you have satisfied the tasks.

Practice 1: Sum Weekly Expenses

• Given the array expenses, write program code to calculate the total of all recorded expenses and print this value to the console.
• Try the code in the Java Playground to verify your prediction.

Practice 2: Count Grades

• Given the array grades containing scores out of 100. Write code to count and print how many scores are greater than or equal to 90.
• Try the code in the Java Playground to verify your prediction.

Practice 3: Attendees to Party

• Given the array names containing the list of friends attending a party. Write code to print their names in reverse order.
• Try the code in the Java Playground to verify your prediction.

Practice 4: Check Inventory

• Given the array inventory which contains the inventory of a store. Write code to check if an item called "Laptop" exists and print "Found" or "Not Found".
• If "Laptop" is in the list, replace it with "Computer" and run the code again. Do you get the right response?
• If "Laptop" is not in the list, increase the array size by one and add it to the list. Run the code again. Do you get the right response?
• Try the code in the Java Playground to verify your prediction.

Practice 5: Average Rainfall Calculator

• Given the array rainfalls, write code to calculate and print the average rainfall for the week.
• Try the code in the Java Playground to verify your prediction.