Could someone please help me write this code in java? Method-Array Lab 1. Write
ID: 3817338 • Letter: C
Question
Could someone please help me write this code in java?
Method-Array Lab
1. Write a method called twiceArray. This method takes an array of double type, it then
multiplies each number in the array by 2, stores the new number back in the array and returns the array back to main.
2. Write a method called xArray. This method takes an array of type double, and another variable of type double (I will call this variable x). It then multiplies each number in the array by x, stores the new number back in the array and returns the array back to main.
Explanation / Answer
ArrayLabTest.java
import java.util.Arrays;
public class ArrayLabTest {
public static void main(String[] args) {
double a[] = {1,2,3,4,5,6,7,8,9,10};
twiceArray(a);
System.out.println(Arrays.toString(a));
double b[] = {1,2,3,4,5,6,7,8,9,10};
xArray(b,5);
System.out.println(Arrays.toString(b));
}
public static void twiceArray(double a[]) {
for(int i=0; i<a.length; i++){
a[i]=a[i]*2;
}
}
public static void xArray(double a[], int x) {
for(int i=0; i<a.length; i++){
a[i]=a[i]*x;
}
}
}
Output:
[2.0, 4.0, 6.0, 8.0, 10.0, 12.0, 14.0, 16.0, 18.0, 20.0]
[5.0, 10.0, 15.0, 20.0, 25.0, 30.0, 35.0, 40.0, 45.0, 50.0]
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