7. Without using your computer, what is the output of the following code

int[] a = { 1, -2, 4, 7, 23 };

for (int k=1; k

a[k]=a[k-1];

for (int x: a)

System.out.println(x);

8. Write code that will sort an array of Rational objects from Lab xx. Test your code with the values

Rational[ ] fracs = new Rational[5];

fracs[0] = new Rational(1, 2);

fracs[1] = new Rational(1,3);

fracs[2] = new Rational(7,8);

fracs[3] = new Rational(1, 100);

fracs[4] = new Rational(5, 16);