array read and access

Grace is a computer science student who needs to create an array of student ids for her project. The ids she needs to include are 115331, 450055, 555641, 875560, and 987555.

• int [ ] id = new {115331, 450055, 555641, 875560, 987555};

• int [5] id = {115331, 450055, 555641, 875560, 987555};

• int [ ] id = {115331, 450055, 555641, 875560, 987555};

• int [ ] id = new int [5];

Hannah is working on a Java project where she needs to create an array of subject codes for her classes. The subject codes are S, M, C, P, I, and K. How should she declare this array in Java?

• char [ ] code = {'S', 'M', 'C', 'P', 'I' and 'K'};

• char [ ] code = {S, M, C, P, I, K};

• char [ ] code = {"S", "M", "C", "P", "I", "K"};

• char [ ] code = {'S', 'M', 'C', 'P', 'I', 'K'};

Java code to display the size of an array name studentname[ ] which contains the names of students in a class, including Abigail, Charlotte, and Harper.

• System.out.println("The size is " + studentname[ index ]);

• System.out.println("The size is " + studentname.length);

• System.out.println("The size is " + length.length);

• System.out.println("The size is " + studentname);

Java code to display all elements of array studentname[ ].

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Java code to read elements into array studentname[ ].

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Java code to read elements into array customerid[ ].

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• None of the above is the right answer.

A code segment to identify the largest element in an array.

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Based on the code segment below, imagine Benjamin is managing his savings account. Identify the name of the array that holds his balance.

for(int j=0; j<balance.length; j++)

{

System.out.print("Enter amount: ");

.......

}

• No answer.

• temp[ ]

• balance

• balance [ i ]

Avery has an array of books on her shelf. What index value does the third book in her array have?

• 0

• 1

• 2

• 3

Hannah has a box of different colored balls. Each ball in the box must have the same Data Type as the others.

 

• Subscript

• Value

• Memory Location

• Data Type