Chapter 3, Problem 3RE

Find the errors in the following if statements.

1. a. if x > 0 then System.out.print(x);
2. b. if (1 + x > Math.pow(x, Math.sqrt(2)) { y = y + x; }
3. c. if (x = 1) { y++; }
4. d. x = in.nextInt();

  if (in.hasNextInt())

  {

   sum = sum + x;

  }

  else

  {

   System.out.println("Bad input for x");

  }

1. e. String letterGrade = "F";

  if (grade >= 90) { letterGrade = "A"; }

  if (grade >= 80) { letterGrade = "B"; }

  if (grade >= 70) { letterGrade = "C"; }

  if (grade >= 60) { letterGrade = "D"; }