Programming Forums > Application Development > Java

akbomber · Nov 13th, 2006, 10:28 PM

i am a noob at java so my problem could quite possibly be really easy to fix
what im trying to do is get it so for a day in January it will display the day of week sunday being 0 and i keep gettin an identifier expected error

(Toggle Plain Text)

import java.util.Scanner;

public class DayOfWeek
{
	String dayName;
	public int dayOfWeek1(int day);
	{
		dayOfWeek1 = (day - 1) % 7;
		return dayOfWeek1;
	}
	
	public static void main(String[] args)
	{
		Scanner kb = new Scanner(System.in);
		System.out.println("Enter Day in January (1-31): ");
		int day = kb.nextInt();
		
		if(dayOfWeek1 = 0)
		{
			dayName = "Sunday";
		}
		if(dayOfWeek1 = 1)
		{
			dayName = "Monday";
		}
		if(dayOfWeek1 = 2)
		{
			dayName = "Tuesday";
		}
		if(dayOfWeek1 = 3)
		{
			dayName = "Wednesday";
		}
		if(dayofWeek1 = 4)
		{
			dayName = "Thursday";
		}
		if(dayOfWeek1 = 5)
		{
			dayName = "Friday";
		}
		if(dayOfWeek1 = 6)
		{
			dayName = "Saturday";
		}
		
	}
	
	system.out.println(dayName);	
	
		
}

DaWei · Nov 13th, 2006, 10:56 PM

dayOfWeek1 is a function, not a variable. Break out your parentheses and toss in a couple, along with an argument.

The Dark · Nov 13th, 2006, 11:01 PM

Also this line:

(Toggle Plain Text)

	system.out.println(dayName);

Needs to be inside a function.

akbomber · Nov 13th, 2006, 11:03 PM

lol like i said i am a complete noob
can u plz describe wut u mean more by that
both of u id prob understand wut ur saying but i just dont no wut u mean by function and such

DaWei · Nov 13th, 2006, 11:06 PM

Break out the book. Maybe you could even find one written in AOL-speak, so you could understand it.

akbomber · Nov 13th, 2006, 11:11 PM

i love you to

Arevos · Nov 14th, 2006, 3:42 AM

Before you learn how to program in a language, there is really a minimum of information you should know before asking questions. In Java, this is a class:

 java Syntax (Toggle Plain Text) 
class DayOfWeek
{
}
class DayOfWeek
{
}

This is the definition of a function, also known as a method:

 java Syntax (Toggle Plain Text) 
String fooey(String s)
{
    return s + "? Fooey!";
}
String fooey(String s)
{
    return s + "? Fooey!";
}

This method takes in a string as input, and returns a string as output. In Java, all methods have to be defined inside a class. This is a variable:

java Syntax (Toggle Plain Text)

String name = "Churchill";

Variables can be defined in a class, or in a method. This is a method call:

 java Syntax (Toggle Plain Text) 
System.out.println("Hello World");
System.out.println("Hello World");

Generally speaking, a method call should be called from another method. The method with the name "main" will be called automatically when the program starts.

However, I'm not sure why I'm writing this, because there are far better places to learn the basics. Honestly, it's like asking why your car isn't working, and then asking simple questions like, "Tyre? What's a 'tyre'?". We can't help you if you don't know the absolute basics.

Also, it helps if you speak using as good English as you can manage. This shows you're taking the effort to be understood, which encourages other people to take some effort to help you. If you can't be bothered to string together a valid sentence, why should people be bothered helping you? Also, programming languages typically require the programmer to strictly adhere to the syntax of the language. It might help for you to start practising on English, first.

And if you're wondering why I'm saying this after I gave you some basic information; it's because I'm a helpful imbecile. However, even my patience has it's limits.

akbomber · Nov 14th, 2006, 8:37 AM

ok there you go i know what a method is i had not ever heard the term function before

DaWei · Nov 14th, 2006, 9:08 AM

OK, there you go. I know what a method is. I had never heard the term, function, before.

stevengs · Nov 14th, 2006, 6:04 PM

I was wondering what a term sounds like when it functions. Does it make a sound when it functions in a forest where there is no one to hear it?

Nov 13th, 2006, 10:28 PM	#1
akbomber Newbie Join Date: Nov 2006 Posts: 4 Rep Power: 0	indentifier expected i am a noob at java so my problem could quite possibly be really easy to fix what im trying to do is get it so for a day in January it will display the day of week sunday being 0 and i keep gettin an identifier expected error (Toggle Plain Text) import java.util.Scanner; public class DayOfWeek { String dayName; public int dayOfWeek1(int day); { dayOfWeek1 = (day - 1) % 7; return dayOfWeek1; } public static void main(String[] args) { Scanner kb = new Scanner(System.in); System.out.println("Enter Day in January (1-31): "); int day = kb.nextInt(); if(dayOfWeek1 = 0) { dayName = "Sunday"; } if(dayOfWeek1 = 1) { dayName = "Monday"; } if(dayOfWeek1 = 2) { dayName = "Tuesday"; } if(dayOfWeek1 = 3) { dayName = "Wednesday"; } if(dayofWeek1 = 4) { dayName = "Thursday"; } if(dayOfWeek1 = 5) { dayName = "Friday"; } if(dayOfWeek1 = 6) { dayName = "Saturday"; } } system.out.println(dayName); } import java.util.Scanner; public class DayOfWeek { String dayName; public int dayOfWeek1(int day); { dayOfWeek1 = (day - 1) % 7; return dayOfWeek1; } public static void main(String[] args) { Scanner kb = new Scanner(System.in); System.out.println("Enter Day in January (1-31): "); int day = kb.nextInt(); if(dayOfWeek1 = 0) { dayName = "Sunday"; } if(dayOfWeek1 = 1) { dayName = "Monday"; } if(dayOfWeek1 = 2) { dayName = "Tuesday"; } if(dayOfWeek1 = 3) { dayName = "Wednesday"; } if(dayofWeek1 = 4) { dayName = "Thursday"; } if(dayOfWeek1 = 5) { dayName = "Friday"; } if(dayOfWeek1 = 6) { dayName = "Saturday"; } } system.out.println(dayName); } Last edited by akbomber; Nov 13th, 2006 at 11:06 PM.

Nov 13th, 2006, 10:56 PM	#2
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	dayOfWeek1 is a function, not a variable. Break out your parentheses and toss in a couple, along with an argument. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Nov 13th, 2006, 11:01 PM	#3
The Dark Expert Programmer Join Date: Jun 2005 Posts: 894 Rep Power: 4	Also this line: (Toggle Plain Text) system.out.println(dayName); system.out.println(dayName); Needs to be inside a function.

Nov 13th, 2006, 11:06 PM	#5
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	Break out the book. Maybe you could even find one written in AOL-speak, so you could understand it. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Nov 14th, 2006, 3:42 AM	#7
Arevos Programming Guru Join Date: Aug 2005 Location: England Posts: 1,499 Rep Power: 5	Before you learn how to program in a language, there is really a minimum of information you should know before asking questions. In Java, this is a class: java Syntax (Toggle Plain Text) class DayOfWeek { } class DayOfWeek { } This is the definition of a function, also known as a method: java Syntax (Toggle Plain Text) String fooey(String s) { return s + "? Fooey!"; } String fooey(String s) { return s + "? Fooey!"; } This method takes in a string as input, and returns a string as output. In Java, all methods have to be defined inside a class. This is a variable: java Syntax (Toggle Plain Text) String name = "Churchill"; String name = "Churchill"; Variables can be defined in a class, or in a method. This is a method call: java Syntax (Toggle Plain Text) System.out.println("Hello World"); System.out.println("Hello World"); Generally speaking, a method call should be called from another method. The method with the name "main" will be called automatically when the program starts. However, I'm not sure why I'm writing this, because there are far better places to learn the basics. Honestly, it's like asking why your car isn't working, and then asking simple questions like, "Tyre? What's a 'tyre'?". We can't help you if you don't know the absolute basics. Also, it helps if you speak using as good English as you can manage. This shows you're taking the effort to be understood, which encourages other people to take some effort to help you. If you can't be bothered to string together a valid sentence, why should people be bothered helping you? Also, programming languages typically require the programmer to strictly adhere to the syntax of the language. It might help for you to start practising on English, first. And if you're wondering why I'm saying this after I gave you some basic information; it's because I'm a helpful imbecile. However, even my patience has it's limits.

Nov 13th, 2006, 11:03 PM	#4
akbomber Newbie Join Date: Nov 2006 Posts: 4 Rep Power: 0	lol like i said i am a complete noob can u plz describe wut u mean more by that both of u id prob understand wut ur saying but i just dont no wut u mean by function and such

Nov 13th, 2006, 11:11 PM	#6
akbomber Newbie Join Date: Nov 2006 Posts: 4 Rep Power: 0	i love you to

Nov 14th, 2006, 8:37 AM	#8
akbomber Newbie Join Date: Nov 2006 Posts: 4 Rep Power: 0	ok there you go i know what a method is i had not ever heard the term function before

Nov 14th, 2006, 9:08 AM	#9
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	OK, there you go. I know what a method is. I had never heard the term, function, before. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Nov 14th, 2006, 6:04 PM	#10
stevengs Professional Programmer Join Date: May 2005 Location: Bad Nauheim, Germany Posts: 436 Rep Power: 4	I was wondering what a term sounds like when it functions. Does it make a sound when it functions in a forest where there is no one to hear it? __________________ -Steven "Is this a piece of your brain?" - Basil Fawlty

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Programming Forums > Application Development > Java

indentifier expected