Please I need in JAVA. please attach a copiable code.

Qn7 (4 points) Hand-trace the following code, showing the value of n and the output. What error do you notice? int n 1 ; while (n ! = 50) { System.out.println(n); + 10; } n = n Qn8 (14 points) The roots of the quadratic equation ax2 + bx +c= 0,a # 0 are given by the following formula: -6+ Vb2 - 4ac (1) 2a = In this formula, the term V62 4ac is called the discriminant. If V62 4ac 0, then the equation has a single (repeated) root. If V62 4ac > 0, the equation has two real roots. If V62 4ac 0, the program should output the roots of the quadratic equation. (Hint: Use the method pow or sqrt from the class Math to calculate the square root.) Save the file as Assign2Qn8XX.java. Note that for your submission, you need to replace XX with your name