Question

Use the following code, which initializes an array x with 1000 random integers, to answer the questions a and b.

java.util.Random generator = new java.util.Random( );//accessing Random class
final int MAX = 1000;
int[] x = new int[MAX];
for( int j = 0; j < MAX; j++ )
{
x[j] = generator.nextInt( MAX ) + 1;
}

a. Write partial code to print all array elements of x in reverse order (one array element per line)

b. Write partial code to compute the average of all elements and store it into a double variable named average.

Answer 1

a. Write partial code to print all array elements of x in reverse order (one array element per line)
for( int j = MAX-1; j >=0; j-- )
{
System.out.println(x[j]);
}


b. Write partial code to compute the average of all elements and store it into a double variable named average.

double average = 0.0, sum = 0.0;
for( int j = 0; j < MAX; j++ )
{
sum = sum + x[j];
}

average = sum/MAX ;