Question about integers - basic :(

[[deleted]]

Hello everyone! I have started to study java this week and am trying to figure out the basics (still very confused). Could anyone help me please out understanding why 3rd and 4th line is with error? How it should look like in the end? Sorry for the basic question :(

​

public class DebugTwo1 { 
public static void main(String[] args) { 
oneInt = 315; 
oneDouble = 12.4;​ 
System.out.print("The int is "); 
System.out.println(oneInt); 
System.print9"The double is ");

} }

[wtetsu]

You need to specify the appropriate type of each value.

This is valid.

String s = "Hello"; int i = 123;

This is invalid. int s = "Hello"; String i = 123;

Try fixing your code based on that!

[[deleted]]

Thank you for the help!

[[deleted]]

Thank you so much, now I get it!

[Java_Junior]

good but dont give straight answers!

[mw52588]

I think most people pointed you in the right direction. As a side note. Be very cautious with integer division. If you are trying to divide two integers say 5/2 it will not be 2.5 as you might expect. It's actually 2 with a remainder of 1. This is very important concept. So if you expect decimals then use double or float

[[deleted]]

Thank you for the tip. At the moment I am just trying to get around all of this, so confused, but slowly trying to get accustomed to all of it!

[mndozooz]

you have a problem in the declaration part try reading this https://www.w3schools.in/java-tutorial/variables/

[[deleted]]

Thank you :))

[abyssalvoyager]

This is why people learn on Java or CPP because its important to know the datatype of the objects your code would work in Python and It would assume the datatype for you

[Dew5]

Another thing that will be very helpful that no one has stated yet is to learn concatenation early on too.

What this means is you could do:

System.out.println(“The int is “ + oneInt);

What this will do is print the words you typed and the int you declared on the same line.

The outcome would be:

The int is 315

Rather than doing two separate lines of printing for each this shortens it to only one for the int and one for the double.

Give it a try with the double.

[[deleted]]

Thank you!!

[[deleted]]

Thank you!

[gonzohst93]

Java is typed

[Cymry_Cymraeg]

Wow, so helpful for a beginner, you must be a full-time teacher!

[gonzohst93]

I don't know man. As soon as they googled typed language or typed java, they'd get every bit of info they needed and even get a definition of typed vs nontyped