I need help again with basic coding again guys

[stone basalt]

pls help 🙂

[severe tangle]

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[stone basalt]

milk

and help

[cosmic vortex]

send the code you need help with

or ask a question

[stone basalt]

I have a assignemnt

here are the parameters etc

im very confused on the subject

so idk

it needs to do those things

[cosmic vortex]

Are you even allowed to name a non main method main

[stone basalt]

uuhhhhh

idk

it has to seem like im not cheating

i dont rlly understand

tbh

[cosmic vortex]

./run java

public class Main {

 public static int main() {return 1;} 
 public static void main(String[] args) {}
}

[digital dome]

Your java(15.0.2) code ran without output @cosmic vortex

[cosmic vortex]

Nope you can't

So that's the first thing I'd change

[stone basalt]

idk im confused

oooooh

so the main method

cant be liek tyhat

i have to make another mthod inside of it>

buttt

it needs to contain 2 int

so

[cosmic vortex]

Sorry I was wrong you can name another method main

[stone basalt]

im confused

im confused

[cosmic vortex]

On what

Yes you need another main method

[stone basalt]

huh

i need to

do the things it says on the left side

[cosmic vortex]

One that is void and takes in String[]

[stone basalt]

huh

your killing me

laymans terms pls

als

also

wahts the line to inpout util scanner

[cosmic vortex]

When they say main method holds that doesn't mean change the parameter list

[stone basalt]

isnt it like

java.input.utilscanner

[cosmic vortex]

So actually your your question is asking you to create two variables inside the main method

[stone basalt]

or something

[cosmic vortex]

Not actually change the main method to take in two ints

[stone basalt]

NO my question is how to do the assignemnt

[cosmic vortex]

Yes I'm trying to help you with the question

Because you messed up on the first part

[stone basalt]

no no

oh

i just need to

be able to take in 2 int

[cosmic vortex]

Change the method back to what it was

String args etc

[stone basalt]

alr

[cosmic vortex]

All I wants you to do is create two variables in the main method that are ints

For the first bit

And yeah you do want to Scanner her for this

It would be java.util.Scanner

[cosmic vortex]

Idk what all that is tho lol

[stone basalt]

no

[cosmic vortex]

Good

[stone basalt]

dont i input it?

like

java.util.Scanner.input

or somethoing

idk

gimme one sec

[cosmic vortex]

Import the package? Yes

The package name itself is java.util.Scanner

Something tells me you're mixing up the keyword import into the actual package name

[stone basalt]

import java.util.Scanner;

this

yes

yes

[cosmic vortex]

Yes

[stone basalt]

and this

Scanner inputDevice = new Scanner (System.in);

[cosmic vortex]

Looks good

[stone basalt]

like this

[cosmic vortex]

Yep

[cosmic vortex]

It helps if you just copy and paste the code in discord

[stone basalt]

now how do i make the new methods

alr alr

[cosmic vortex]

It does look good though onto the last part

[stone basalt]

yeah

so how do i make those method

s

within the main method

[cosmic vortex]

A method is like a function right?

Like in math

[stone basalt]

yes

ig

idk

[cosmic vortex]

f(x)

[stone basalt]

lol

yes

[cosmic vortex]

So you don't create the method in the main method

You call it and it returns a value or does something

[stone basalt]

yeah a function inside of a function cant exsist

[cosmic vortex]

Technically it can but for this yeah

[stone basalt]

so where do i make it then

[cosmic vortex]

So create the method in the class, the same spot as where the main method is

[stone basalt]

but outside its brackets right

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
    }
   public static void main(String[] args){
       
   }
}

like this

?

[cosmic vortex]

public class MainClass {

 public static void main(String[] args) {

 }
  // Your methods here
}

[stone basalt]

sooo

[cosmic vortex]

Look here

[stone basalt]

like i did?

[cosmic vortex]

See those 3 ``` at the top of my message

[stone basalt]

yes

[cosmic vortex]

Add them at the bottom too and the message becomes this:

[cosmic vortex]

.

[stone basalt]

where are those

on the kb

found em

grave

[cosmic vortex]

Nice

[stone basalt]

is that right tho

what i did

[cosmic vortex]

Your method is in the right spot just change the name and parameters

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
    }
   public static void displayTwiceTheNumber(String[] args){

   }
   public static void displayNumberPlusFive(String[] args){

   }
   public static void displayNumberSquared(String[] args){
       
   }
}

wym

ah yes

it cant be void right

it has to be return

or something

[cosmic vortex]

Well are they supposed to take in a String array?

[stone basalt]

int

i think

[cosmic vortex]

so change the parameter list to match that

[stone basalt]

so

int[] args

?

idek

[cosmic vortex]

Just int

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
    }
   public static void displayTwiceTheNumber(int){

   }
   public static void displayNumberPlusFive(int){

   }
   public static void displayNumberSquared(int){

   }
}

?

[cosmic vortex]

The parameter needs a name so you can reference it inside the method

[stone basalt]

what do i name it

1 2 3

?

[cosmic vortex]

You don't name it a value

[stone basalt]

letter

[cosmic vortex]

Give it a name like num or something

[stone basalt]

x

y

z

[cosmic vortex]

Sure ig

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
    }
   public static void displayTwiceTheNumber(int x){

   }
   public static void displayNumberPlusFive(int y){

   }
   public static void displayNumberSquared(int z){

   }
}

this

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
    }
   public static void displayTwiceTheNumber(int x){
       int q;
       int w;

   }
   public static void displayNumberPlusFive(int y){
       int e;
       int r;

   }
   public static void displayNumberSquared(int z){
       int t;
       int u;

   }
}

like this maybe

[cosmic vortex]

Why

The whole point of a parameter is to declare the variable

[stone basalt]

im confused and stressed this is due at 11 tn

i have 25 minutes to understand the concept

[cosmic vortex]

So just like a function

f(x)

x is the parameter

[stone basalt]

ye

[cosmic vortex]

The parameter is given a value when called

For instance f(5)

[stone basalt]

no cause basically they have to multiply and stuff the values i give them tho

[cosmic vortex]

That value is passed into the function

[stone basalt]

so x represents the int values i put in for a and b in the main function?

[cosmic vortex]

For instance f(x) = x+5 -> f(5) = 5+5

Make sense?

This idea is directly translated into java methods

public class Main {

public static int f(int x) {
   return x+5;
}

}

do you see how this is working?

It's the exact same function but as a Java method

[stone basalt]

i was making int q

to give it a value of 2

to multiply by it

isnt that whats supposed to happen?

[cosmic vortex]

Yep and guess what. To call the method there is quite literally a 1 to 1 mapping

f(5);

this calls the method and returns the value

[cosmic vortex]

The name doesn't really matter

[stone basalt]

WAIT

how do i square a value

[cosmic vortex]

Math.pow(n, 2);

[stone basalt]

wat

i dont think i can use that

shell think im cheating

[cosmic vortex]

So just multiple it by itself

[stone basalt]

yes

ig

so

a.a

?

[stone basalt]

shit

right

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
    }
   public static void displayTwiceTheNumber(int x){
       int q = 2;

   }
   public static void displayNumberPlusFive(int y){
       int e = 5;

   }
   public static void displayNumberSquared(int z){
       

   }
}

so

how do i import values

im runnign out of tim

[cosmic vortex]

Okay list

To call the method you need to write displayTwiceNumber(a); in main method

You pass in the value

That you want the method to use

And in your method you are displaying twice the number

So display 2*x

In displayTwiceNimber

[stone basalt]

so

i just write

2*a

2*b

?

[cosmic vortex]

You want to display it

[stone basalt]

no no

[cosmic vortex]

How do you print something in Java?

[stone basalt]

lookie

[cosmic vortex]

If you're talking about the expression itself, yes

[stone basalt]

it has to be like this

[cosmic vortex]

Okay I see

[stone basalt]

so it wants me to call the method after it multiplies int a and b and then print it

[cosmic vortex]

So System.out.println(x + "times....

Fill in the rest

[stone basalt]

yes

[cosmic vortex]

Yes

To call each of the methods on the first input and the second input

[stone basalt]

System.out.println(a + "times" + b + "is" )

wait

so i do this

but

what do i put

for the final output

displayTwiceTheNumber?

[cosmic vortex]

x is your number

[stone basalt]

no

a is

[cosmic vortex]

Well you passed in the value in a

And that value is assigned to x

(that's how methods work)

[stone basalt]

i no understand

[cosmic vortex]

This is why we have parameters

Whenever you call a method, the value you send, even if it's a variable, is assigned to the parameter

It's like a new program has started basically and it doesn't know about a, only x because it's defined in the method

So x is the original value. Idk what b is but that should just be 2

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceNumber(a);
        displayTwiceNumber(b);
        System.out.println(a + " times 2 is " + );
        System.out.println(a + " plus 5 is " + );
        System.out.println(a + " squared is " +  );
        System.out.println(b + " times 2 is " + );
        System.out.println(b + " plus 5 is " + );
        System.out.println(b + " squared is " +  );

    }
   public static void displayTwiceTheNumber(int x){
       int q = 2;

   }
   public static void displayNumberPlusFive(int y){
       int e = 5;

   }
   public static void displayNumberSquared(int z){
       

   }
}

no

cause when it grades it right

[cosmic vortex]

Ahhhh

[stone basalt]

itll assign a dif value

to test if my methods work

[cosmic vortex]

Put your print statements in your new method

You are calling these methods and they are printing

Not the main method

[stone basalt]

so put them in their respective methods?

[cosmic vortex]

Yes

Methods are like groups of code

That you call to execute

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceNumber(a);
        displayTwiceNumber(b);
        displayNumberPlusFive(a);
        displayNumberPlusFive(b);
        displayNumberSquared(a);
        displayNumberSquared(b);
    

    }
   public static void displayTwiceTheNumber(int x){
       int q = 2;
        System.out.println(a + " times 2 is " + x );
        System.out.println(b + " times 2 is " + x );
        x = a*q
        x = b*q
   }
   public static void displayNumberPlusFive(int y){
       int e = 5;
        System.out.println(a + " plus 5 is " + y );
        System.out.println(b + " plus 5 is " + y );

   }
   public static void displayNumberSquared(int z){
       System.out.println(b + " times 2 is " + z );
       System.out.println(b + " squared is " + z );

   }
}

like this or no

i only did that first one idk if its right

[cosmic vortex]

Yes

Almost

[stone basalt]

yeah?

whats missing

[cosmic vortex]

You don't need to declare any new variables in these methos

[stone basalt]

sooo

wait

i can do

2*a

[cosmic vortex]

Your parameters have everything you need

[stone basalt]

that works?????

[cosmic vortex]

Yes

Make sure when you do arithmetic, well, at least when adding that you put it in a parenthesis if it's in a print statement, also order of operations applies (hopefully that's obvious)

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceNumber(a);
        displayTwiceNumber(b);
        displayNumberPlusFive(a);
        displayNumberPlusFive(b);
        displayNumberSquared(a);
        displayNumberSquared(b);
    

    }
   public static void displayTwiceTheNumber(int x){
        System.out.println(a + " times 2 is " + x );
        System.out.println(b + " times 2 is " + x );
        x = a*2;
        x = b*2;
   }
   public static void displayNumberPlusFive(int y){
        System.out.println(a + " plus 5 is " + y );
        System.out.println(b + " plus 5 is " + y );
        y = a+5;
        y = b+5;
   }
   public static void displayNumberSquared(int z){
       System.out.println(b + " times 2 is " + z );
       System.out.println(b + " squared is " + z );
        z = a*a;
        z = b*b;
   }

}

now im very confused whats wrong

[cosmic vortex]

just so it inline

[stone basalt]

what

[cosmic vortex]

You're confusing yourself by reassigning

You can do arithmetic expressions in a print statement

[stone basalt]

ah it wont import int a and int b

thats the problem

why not tho

[cosmic vortex]

Because I already said

You're working with x

Or y or z

[stone basalt]

im confused now

[cosmic vortex]

HOW

[stone basalt]

😦

[cosmic vortex]

Read

[stone basalt]

its due in 1 minute

im gonna get a zero on this

😦

[cosmic vortex]

Then just change it x and stop asking questions lmao

[stone basalt]

CHANGE WUT TO X

[cosmic vortex]

A and B

[stone basalt]

x = x^2????

[cosmic vortex]

x * x

[stone basalt]

x = x*2

???

tell me how that makes sense

[cosmic vortex]

Inside the print statement

Stop

Don't reassign the damn variable lol

[stone basalt]

..

..

..

[cosmic vortex]

You have x in the print statements? Just replace it with x * x

It's that simple

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceNumber(a);
        displayTwiceNumber(b);
        displayNumberPlusFive(a);
        displayNumberPlusFive(b);
        displayNumberSquared(a);
        displayNumberSquared(b);
    

    }
   public static void displayTwiceTheNumber(int x){
        System.out.println(a + " times 2 is " + x*2 );
        System.out.println(b + " times 2 is " + x*2 );
        x = a*2;
        x = b*2;
   }
   public static void displayNumberPlusFive(int y){
        System.out.println(a + " plus 5 is " + y+5 );
        System.out.println(b + " plus 5 is " + y+5 );
        y = a+5;
        y = b+5;
   }
   public static void displayNumberSquared(int z){
       System.out.println(b + " times 2 is " + z*z );
       System.out.println(b + " squared is " + z*z );
        z = a*a;
        z = b*b;
   }

}

like this

??

[cosmic vortex]

Why do you a

Why do you have b

[stone basalt]

:/

[cosmic vortex]

Replace It with x y or z

[stone basalt]

how does it knoooooow

what im talking abt

[cosmic vortex]

Because you defined it

You passed the value in and it's assigned to x

[stone basalt]

BUT THERES 2 values

how does it know what to print

[cosmic vortex]

YES you called it twice

[stone basalt]

it can just repeat it

:/

[cosmic vortex]

Each time it assigns it to x and runs the code

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceNumber(a);
        displayTwiceNumber(b);
        displayNumberPlusFive(a);
        displayNumberPlusFive(b);
        displayNumberSquared(a);
        displayNumberSquared(b);
    

    }
   public static void displayTwiceTheNumber(int x){
        System.out.println(a + " times 2 is " + x*2 );
        System.out.println(b + " times 2 is " + x*2 );
        x = x*2;
        x = x*2;
   }
   public static void displayNumberPlusFive(int y){
        System.out.println(a + " plus 5 is " + y+5 );
        System.out.println(b + " plus 5 is " + y+5 );
        y = y+5;
        y = y+5;
   }
   public static void displayNumberSquared(int z){
       System.out.println(b + " times 2 is " + z*z );
       System.out.println(b + " squared is " + z*z );
        z = z*z;
        z = z*z;
   }

}

lik this

[cosmic vortex]

You didn't change anything.....

You still have a

You still have b

In your method that are printing

[stone basalt]

AHHHH

it FUCKIN WORKED

but

not in the right order

:/

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceTheNumber(a);
        displayTwiceTheNumber(b);
        displayNumberPlusFive(a);
        displayNumberPlusFive(b);
        displayNumberSquared(a);
        displayNumberSquared(b);
    

    }
   public static void displayTwiceTheNumber(int x){
        System.out.println(x + " times 2 is " + x*2 );
        System.out.println(x + " times 2 is " + x*2 );
        x = x*2;
        x = x*2;
   }
   public static void displayNumberPlusFive(int y){
        System.out.println(y + " plus 5 is " + y+5 );
        System.out.println(y + " plus 5 is " + y+5 );
        y = y+5;
        y = y+5;
   }
   public static void displayNumberSquared(int z){
       System.out.println(z + " times 2 is " + z*z );
       System.out.println(z + " squared is " + z*z );
        z = z*z;
        z = z*z;
   }

}

NO IT DIDNT WORK

I TROLD YOU

[cosmic vortex]

Okay you do realize that code runs one line at a time right

[stone basalt]

it repeated a

twice

TWICE

[cosmic vortex]

You only need one print statement in the entire method for each

[stone basalt]

look

[cosmic vortex]

I didn't see that but yeah that's a big blunder loll

You only need one print statement

Listen

A method is a task

When you call a method you are telling it to print something twice by having two print statements

That's what you just did

Does that make any sense?

[stone basalt]

NO

im dumb

[cosmic vortex]

A METHOD IS A THING THAT DOES SOMETHING

[stone basalt]

YES

f(x)

[cosmic vortex]

does that not make sense?!

[stone basalt]

YES

[cosmic vortex]

YES

You said method PRINT PRINT

So it's going to PEINT PRINT

[stone basalt]

it mostly works

but listen

it

says

5+5

55

=

55

tell me

how fix

[cosmic vortex]

I love how I said this already

[stone basalt]

import java.util.Scanner;
public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceTheNumber(a);
        displayTwiceTheNumber(b);
        displayNumberPlusFive(a);
        displayNumberPlusFive(b);
        displayNumberSquared(a);
        displayNumberSquared(b);
    

    }
   public static void displayTwiceTheNumber(int x){
        System.out.println(x + " times 2 is " + x*2 );
        
        x = x*2;
       
   }
   public static void displayNumberPlusFive(int y){
        System.out.println(y + " plus 5 is " + y+5 );
       
        y = y+5;
   }
   public static void displayNumberSquared(int z){
       System.out.println(z + " squared is " + z*z );
       
        z = z*z;
   }

}

oh shit

naw

still deosnt work

[cosmic vortex]

Wdym ☠️

[stone basalt]

nbm

nvm

i put this y +(5)

im a dumbass

public class NumbersDemo{
    public static void main(String[] args){
        int a;
        int b;
        Scanner inputDevice = new Scanner (System.in);
        System.out.println("Enter an integer >> ");
        a = inputDevice.nextInt();
        System.out.println("Enter another integer >> ");
        b = inputDevice.nextInt();
        displayTwiceTheNumber(a);
        displayTwiceTheNumber(b);
        displayNumberPlusFive(a);
        displayNumberPlusFive(b);
        displayNumberSquared(a);
        displayNumberSquared(b);
    

    }
   public static void displayTwiceTheNumber(int x){
        System.out.println(x + " times 2 is " + x*2 );
        
        x = x*2;
       
   }
   public static void displayNumberPlusFive(int y){
        System.out.println(y + " plus 5 is " + (y+5) );
       
        y = y+5;
   }
   public static void displayNumberSquared(int z){
       System.out.println(z + " squared is " + z*z );
       
        z = z*z;
   }

}

[cosmic vortex]

Okay in programming if I do
a = 8
print a
And that a = 6

DO YOU THINK IT'S GOING TO MAGICALLY PRINT 6?????

It's going to print 8

[stone basalt]

tyyyyy

[cosmic vortex]

Okay good job

[stone basalt]

uhhhh

yes>

?

[cosmic vortex]

No

Print a first

[stone basalt]

man

i need

a

[cosmic vortex]

It's going to print it's value

[stone basalt]

java basics class

even tho thats what im in

LOL

[cosmic vortex]

Code runs in a sequential manner

If you print the value it's going to print it's present value

Reassigning it later isn't going to change the print

Because it already happend

[stone basalt]

hey man

i hope you know

ill be back next tuesday night crying about more assignments that i dont know how to do

[cosmic vortex]

Please learn how methods work

Your brain will thank you

[stone basalt]

dw

you can teach me sir

[cosmic vortex]

f(x) !!!

[stone basalt]

wait

i think i understand

methods are like functions

like

a piecewise

I can

give it inputs from the main function

or main method in this case

and it can run them and return values to the main method

or it can keep the values and in this case print them

or graph them in math

yes?

but i cant directly use variables through the main function

i have to define them through in my case x

[thorny cobalt]

i need help with creating a website

[winter island]

#❗︱how-to-get-help not your thread.

[winter island]

methods (programming) are a subset of functions (programming), which are derived from functions (math).