45 replies to this topic

[Stino]

show a lesson.

[Stino]

Go on....

[DrPietro]

Welcome To Java Learning!

Lesson: Input Library

Chapter: Intro

Input library-
In order to use Strings, Intergers, Chars, and doubles, you need to setup an input class file to do so.
So lets get to the input. To use just save it as input.java where your java programs are, then compile
it-then in your class have input in=new input();

You can then have:
1.) int n=in.getInt();
2.) String n=in.getString();
3.) double d=int.getDouble();
4.) char c=in.getChar();

// Input Class

// to set it to IO
import java.io.*;

//file name
public class input

//this line will send the following commands to the system after compiling it
	{public static BufferedReader in=new BufferedReader(new InputStreamReader(System.in));

// functions
	public static int getInt() throws IOException
// to get ints
  {int n=Integer.parseInt(in.readLine());
// return statement
  return n;
	}

	public static double getDouble() throws IOException
  {double n=Double.parseDouble(in.readLine());
// return statement
  return n;
	}

	public static String getString() throws IOException

  {String n=in.readLine();
// return statement
  return n;
	}

	public static char getChar() throws IOException

  {String n=in.readLine();
// return statement
  return n.charAt(0);
	}
}

[DrPietro]

Welcome To Java Learning!

Lesson: IO

Chapter: Intro

IO-


Question#2 IO
Create a program that will allow a person to type in two numbers and print out the smallest
number.

Example.

Enter in 2

Enter in 3

print-out 2 is the smallest

* You can use Int's, or double's
-Int: you get the whole number thats it
-ex. 92

-double: you get the whole number and after the decimal point
-ex. 92.5

* Use any name to declare an int, it does not matter












Answer: It should have looked something like this

{int n1, n2;
System.out.println("Enter 1st number");
n1=in.getInt();
System.out.println();
System.out.println("Enter 2nd number");
n2=in.getInt();
if(n1<n2)
{System.out.println();
System.out.println(n1+" is the smallest");
}
else
{System.out.println();
System.out.println(n2+" is the smallest");
}
}
}

[Detail]

More info about what each bit of code does would be nice.

[vice]

well, right off the bat lord. you don't know what each line of code means. i mean you don't even know what import java.io.*; does. i thought you knew java?

put simply, people who have been taking java for a few months should not be writing tutorials on the subject. so do the users at this forum a favor, and stop the bull. anyhow, if this does go through, i will help you with the lessons in order for the users to gain a better knowledge of the language.


figure it out.

[Detail]

I only know a tiny bit of C++, yet i'm able to write tutorials. Although, I could guide someone out of armageddon - I'm just good at explaining.


Welcome to the forum vice. Intresting first post

[Mastermind]

Quite true. Before you can teach, you must understand. To understand, you need to know. Once you know Java, then you can teach it. Unrelated note, I've got my C++ book now, so I can help with problems a bit more.

[Detail]

The main reason why this wont go through is because of communication.

I can describe a shadow to a blind man (think about it).
People like you, mastermind, and many others; just aint "user friendly" enough.

Imagain being at the top of a mountain. The mountain has many diffrent paths and obstacles. You can't just tell someone to "climb up" and expect them to reach the top just because you could.

[Mastermind]

The main reason why this wont go through is because of communication.

I can describe a shadow to a blind man (think about it).
People like you, mastermind, and many others; just aint "user friendly" enough.

Imagain being at the top of a mountain. The mountain has many diffrent paths and obstacles. You can't just tell someone to "climb up" and expect them to reach the top just because you could.

I can be user friendly, I just have other people do it for me. You still need to be able to explain everthing with Java. Start with something simple, and work your way up. Think of how you learned it, and then explain that.

[DrPietro]

Yes thank you Masterind, but this vice dude is realy rude, I asked him a simple question, where do you live, and he gives me some bull.

Guess who.

Just because I'm not "user-friendly" enough doesnt mean I can't program in java!

[Stino]

It's only 1 man.. let him go.

[Detail]

AR! I'm going to be brutal...
What the hell does it do!?!
Come on, you have to do more than post mindless lines of letters.

[Mastermind]

I can understand what it does, but there is absolutely no usefulness, and you have no explanation. Just putting up code does absolutely no good. Try creating a simple application, and then explain what you need to make it work. Explain what each part of the code does, and then, perhaps we can consider adding a forum.

[the_kid]

note the "perhaps"... I can't read java worth shit... so I'm going to work on php and c++ first...

[Mastermind]

note the "perhaps"... I can't read java worth shit... so I'm going to work on php and c++ first...

The main reason I can read it is that I'm used to reading code to find the function. I don't know PHP or SQL, but I'm working on making the RPG mod better, just by reading variable names, and function calls, and looking at the Syntax. With well documented code, and good variable names, someone should be able to read your code, and have a good idea how it works, especially if they can see what it actually does.

[DrPietro]

yeah well thats ok stino.

[DrPietro]

Stino PMed me and said to make the bar sexy? is that ok to do?

[DrPietro]

Netscape compatible! A hard thing yes indeed. I shall try my hardess.

[Mastermind]

Thanks. Using Mozilla and not having it work was/is annoying.