This is my code. I have fixed all errors I believe except that upon execution of the while loop it runs indefinitely.

Any ideas?

import java.util.Scanner;
/*Write a program that prompts the user to enter the total number of students first. 
 *Then ask the user to input each studentís grade and use loop statements to read in each grade. 
 *Check input grade to make sure 0<=grade<=100, if the user input any other number, print out 
 *warning message and ask the user to input a new grade. Display the highest score, 
 *the lowest score and the average.
public class LoopStatements {
	// Main Method
	public static void main(String[] args) {
		// Initialize
		int grade = 0; 				// grade value
		int numberofstudents = 0;	// total number of students to be inputed
		int numberofgrades = 0;		// number of grades for student being entered
		float total = 0; 			// sum of grades
		int highest = 0; 			// running highest grade
		int lowest = 0; 			// running lowest grade
		double average = 0; 		// average of grades
		// Create Scanner
		Scanner input = new Scanner(;
		// Prompt user to input total number of Students.
		System.out.println("Please enter the total number of Students: ");
		numberofstudents = input.nextInt();
		//Set loop continuation to run for numberofstudents being entered.
		for (int i = 0; i < numberofstudents; i++) {
			// Prompt user to enter student grades. 
			System.out.println("Please enter number of grades for Student: ");
			numberofgrades = input.nextInt();
		    //Set loop continuation to run for numberofgrades to be entered for that student.
			for (int j=0; j < numberofgrades; j++) {
				//Prompt user to enter a grade.
				System.out.println("Please enter Students' grade:");
				grade = input.nextInt();
				//Test to see if grade is valid
				if (grade < 0 || grade > 100) {
					System.out.println("Grade must be between 0 and 100.\nPlease enter another grade\n");
				while (grade >= 0 && grade <= 100) {
					//Determine if this is highest grade so far and store for highest
					if (grade > highest) {
						highest = grade;
					//Determine if this is lowest grade so far and store for lowest
					if (grade < lowest) {
						lowest = grade;
					total += grade;
				average = (total/numberofgrades);
				System.out.println("The highest grade is " + highest);
				System.out.println("The lowest grade is " + lowest);
				System.out.println("The average grade is " + average);

--- Update ---

Ok, I see my first mistake.

While grade is this.... -> run this loop. I have nothing to tell it to leave the loop and return to the previous loop.