Thread: Need help with Methods!

Hi there, so I'm basically lost on how to get Methods to work properly. Any help you could give me is greatly appreciated! I also attached a file with the requirements to do this project, so if you could take a look at that and tell me what you think, I would be very thankful!

import java.util.Scanner; //for the ability to get input from 
						  //the keyboard 
import java.text.DecimalFormat;
 
public class Project3
{					  
 
	public static void main(String[] args)
	{
		//enter variable below
		double orgGrade;   //Variable for the Original Grade
		double newGrade;	   //Variable for the Grade after the Curve
		double gradepercent;   //Variable for displaying the percentage from option 4.
		double points = 10.0;  //Variable for points added
		double percent = .10;   //Variable for given percentage
		double gpoints;          //Variable for the Given points
		double gpercent;         //Variable for the Given percentage
		int a;					 // Variable for Menu Selection
		Scanner keyboard = new Scanner(System.in);
		DecimalFormat df = new DecimalFormat("00.0");
		//start program here
		orgGrade(double orgGrade);  //get users grade. 
 
		clearScreen(); //clear the screen
 
		a = Menu(int a);  //show menu/selections
 
 
			if (a == 1)                          
				newGrade = orgGrade + points;
				System.out.print("Curve applied: " + points);
				System.out.print("Adjusted grade: " + newGrade);
			else if (a == 2) 
				newGrade = (orgGrade * percent) + orgGrade; 
				gradePercent = orgGrade * percent;
				System.out.print("Curve applied: " + gradePercent);
				System.out.print("Adjusted grade: " + newGrade);
			else if (a == 3)
				System.out.print("How many points should be applied to curve the grade?");
				gpoints = keyboard.nextDouble();
				newGrade = gpoints + orgGrade;
				System.out.print("Curve applied: " + gpoints);
				System.out.print("Adjusted grade: " + newGrade);
			else if (a == 4)
				System.out.print("Enter the percentage of the curve. (Ex. 10% would be .10)");
				gpercent = keyboard.nextDouble();
				newGrade = (gpercent * orgGrade) + orgGrade;
				System.out.print("Curve applied: " + gpercent);
				System.out.print("Adjusted grade: " + newGrade);
			else if (a >= 5)
				System.out.print("That is not valid a selection!");
 
 
 
 
 
 
 
 
 
 
	}
	public static void clearScreen()
	{
		System.out.println("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
	}//end clearScreen
 
	public static void freezeScreen()
	{
		Scanner keyboard = new Scanner(System.in);
 
		System.out.print("	       -- Press Enter to Continue --");
		keyboard.nextLine();
	}//end freezeScreen
 
	public static double orginalgrade(double orgGrade)
	{
		Scanner keyboard = new Scanner(System.in);
		double orgGrade;
 
 
		System.out.println("What is the original grade?");     //Get original grade from user
		orgGrade = keyboard.nextDouble();
 
		return orgGrade; 
	}//end orgGrade
 
	public static int Menu(int a) 
	{
		int a;
		Scanner keyboard = new Scanner(System.in);
 
		System.out.print("		Grade Aduster");
		System.out.print("	   by Aaron Webster \n");   // Greet user
		System.out.print("******************************");
		System.out.println("1. Curve by 10 points.");              //menu options here
		System.out.println("2. Curve by 10 percent.");
		System.out.println("3. Curve by a certain number of points.");
		System.out.println("4. Curve by a given percentage"); 
		System.out.println("5. Exit program\n");
		System.out.println("Enter your selection here");
		a = keyboard.nextInt();
 
		return a;
	}//end Menu
 
	public static 
}

You have a lot of mistakes in your program, I will go through 1 method and you figure the rest.

Your method call:

orgGrade(double orgGrade); // wrong method call

Correction:
First: your method name should be the same in the method call and the method.
Second: you have typed the type (double) of orgGrade in the method call which is wrong.

orignalgrade(orgGrade);// this is how your method should be called

Your method:

public static double orginalgrade(double orgGrade)
{
Scanner keyboard = new Scanner(System.in);
// remove this: double orgGrade; its already declared in the method header no need to re declare.

System.out.println("What is the original grade?"); //Get original grade from user
orgGrade = keyboard.nextDouble();

return orgGrade;
}//end orgGrade

Thanks alot for the help!