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Chapter 7: Problem 42

The arrays numberArray1 and numberArray2 have 100 elements. Write code that copies the values in numberArray1 to numberArray2.

Short Answer

Expert verified
Answer: To copy the elements from numberArray1 to numberArray2, you can use a for loop to iterate through each element of numberArray1. Inside the loop, assign the value of numberArray1 at the current index to the same index of numberArray2. This can be done by setting numberArray2[i] equal to numberArray1[i], where i is the index in the loop.

Step by step solution

01

Declare the arrays and initialize numberArray1 with 100 random elements

First, we need to declare two arrays called numberArray1 and numberArray2, each containing 100 elements. After declaring numberArray1, we need to initialize it with 100 random elements.
02

Iterate through numberArray1

Now that we have initialized numberArray1, we will loop through it using a for loop. The loop should start at index 0 and iterate until the index is less than 100, which is the size of both arrays.
03

Copy the elements from numberArray1 to numberArray2

Inside the loop, copy the value of numberArray1 at the current index to the same index of numberArray2. This can be done by setting numberArray2[i] equal to numberArray1[i], where i is the index in the loop.
04

Sample Code

Here is a sample code in Java that performs the copying of values from numberArray1 to numberArray2: ```java int[] numberArray1 = new int[100]; int[] numberArray2 = new int[100]; // Initialize numberArray1 with random elements for (int i = 0; i < 100; i++) { numberArray1[i] = (int) (Math.random() * 100); } // Copy the elements from numberArray1 to numberArray2 for (int i = 0; i < 100; i++) { numberArray2[i] = numberArray1[i]; } ```

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Most popular questions from this chapter

In a program you need to store the identification numbers of 10 employees (as ints) and their weekly gross pay (as doubles). A) Define two arrays that may be used in parallel to store the 10 employee identification numbers and gross pay amounts. B) Write a loop that uses these arrays to print each employee's identification number and weekly gross pay.

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