1.1 The following codes read four grades from the user and display pass or fail based on the grade >= 60. Write a java program (call it WhileLoopsGrading.java) to replace the following codes with an unspecified number of grade entries. The loop terminates when the user enters a negative value. If the user enters a negative value for the first grade, the program displays the done entering grade message

// The codes for imports, class header, and the public static void main(.){ method are not // shown here.

Scanner in = new Scanner(System.in);

int grade;

int i = 0;

while (i < 4) {

System.out.print("Enter a grade: ");

grade = in.nextInt();

if (grade >= 60)

System.out.println(" Pass");

else

System.out.println(" Fail");

i++;

}

/* The above code displays the following:

Enter a grade: 99

Pass

Enter a grade: 10

Fail

Enter a grade: 88

Pass

Enter a grade: 59

Fail

done entering grades

// your new code in WhileLoopsGrading.java displays the following:

Enter a grade ( < 0 to end )

99

Pass

Enter a grade (<0 to end ):

10

Fail

Enter a grade (<0 to end ):

88

Pass

Enter a grade (<0 to end ):

59

Fail

Enter a grade (<0 to end ):

-1

done entering grades