Fulaman198:
I asked because I realised a flaw in my teaching today, since I was in such a hurry to put up some content (I should say yesterday really). I never mentioned Scanner methods nextDouble(), next(), etc. etc. just mentioned nextInt and nextLine. I'll pay closer attention to the next tutorial I put up. Thanks!

satmaniac:
Fulaman198, I hope all is well at your end. It's just that
this silence is so uncomfortable. We hope to hearing from you sir.

Fulaman198:

Yes, I'll update this thread again soon. Don't worry.

if (statement is true) {

//then execute commands

} else-if (another statement is true) {

//then execute these commands


} else {

//execute these commands

}

package com.fulamannairalandtutorials;
import java.util.Scanner; //import a scanner object

public class SwitchUsage {
    public static void main(String[] args) {
        Scanner stdio = new Scanner(System.in );
        int theMonth;
        
        System.out.println("Please enter a numerical value for month" );
        theMonth = stdio.nextInt();
        
        switch(theMonth) {
            case 1: System.out.println("The Month is January." );
            break;
            
            case 2: System.out.println("The Month is February." );
            break;
            
            case 3: System.out.println("The Month is March." );
            break;
            
            case 4: System.out.println("The Month is April." );
            break;
            
            case 5: System.out.println("The Month is May." );
            break;
            
            case 6: System.out.println("The Month is June." );
            break;
            
            case 7: System.out.println("The Month is July." );
            break;
            
            case 8: System.out.println("The Month is August." );
            break;
            
            case 9: System.out.println("The Month is Septembre." );
            break;
            
            case 10: System.out.println("The Month is Octobre." );
            break;
            
            case 11: System.out.println("The Month is Novembre." );
            break;
            
            case 12: System.out.println("The Month is Decembre." );
            break;
            
            default: System.out.println("You did not enter a valid number" );
            break;      
        }
        
    }
}

macaranta:


Hi,sent you a pm

Fulaman198:


Hi, I didn't receive it, please send it again.

Fulaman198:
I made an edit to the original post, this post now has operators and their respective functions and what they do. Enjoy and good night!

Fulaman198:
Day 4 Assignment:
Read the following documentation in order to...
Your assignments are as follows:
1. Write a Programme tha....

Fulaman198:
Alternatively, there is another way to write this programme. The alternative method to writing it is with a switch statement. The switch statement is another way to test conditional statements. The Switch statement works with byte, short, char and int primitive types. it also works with enum types which we will get to later, the String class and other classes capable of wrapping primitive types.

Let's say for instance that I would like to check the number of the month and correlate it to the proper month, how would I do that with a Switch statement? Very simply put like so:

package com.fulamannairalandtutorials;
import java.util.Scanner; //import a scanner object

public class SwitchUsage {
    public static void main(String[] args) {
        Scanner stdio = new Scanner(System.in );
        int theMonth;
        
        System.out.println("Please enter a numerical value for month" );
        theMonth = stdio.nextInt();
        
        switch(theMonth) {
            case 1: System.out.println("The Month is January." );
            break;
            
            case 2: System.out.println("The Month is February." );
            break;
            
            case 3: System.out.println("The Month is March." );
            break;
            
            case 4: System.out.println("The Month is April." );
            break;
            
            case 5: System.out.println("The Month is May." );
            break;
            
            case 6: System.out.println("The Month is June." );
            break;
            
            case 7: System.out.println("The Month is July." );
            break;
            
            case 8: System.out.println("The Month is August." );
            break;
            
            case 9: System.out.println("The Month is Septembre." );
            break;
            
            case 10: System.out.println("The Month is Octobre." );
            break;
            
            case 11: System.out.println("The Month is Novembre." );
            break;
            
            case 12: System.out.println("The Month is Decembre." );
            break;
            
            default: System.out.println("You did not enter a valid number" );
            break;      
        }
        
    }
}

satmaniac:


Care to explain the line of code in blue, up above?

Fulaman198:
Day 4 Assignment:

Read the following documentation in order to supplement what you have learned today from this tutorial:

https://docs.oracle.com/javase/tutorial/java/nutsandbolts/if.html
https://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html

Your assignments are as follows:

1. Write a Programme that takes the grade programme that was posted earlier today and transform it using the Switch statement. The resulting output should be the same as with the if, else if and else statements

2. Write a programme that asks the user to enter the weight of a vehicle in kg. 2.2 lbs = 1 kg in case you don't know. Based on the table below, write your programme. You can use either a Switch statement or an if statement. That's up to you, but personally for this problem I would use a Switch statement.

asalimpo:

if the op doesnt mind or his student ...

That statement creates a package - a group of related classes grouped together as a unit.
the package can be imported for use in other programs , facilitating code-reuse and avoiding name collision conflicts.
e.g if you have a class with the same name as a native class, you can differentiate yours and avoid confusing the compiler by placing yours in a package.

When compiled, a folder is created in the order of the package name. subfolders appear according to their
dot separation in the package name.
e.g
for the class SwitchUsage
in package
com.fullermannairalandtutorial
the following folder structure will be created com/fullermannairalandtutorials
with the class SwitchUsage in the last folder , fullermannairalandtutorials .


to use this class in other programs, you use the import statement.

like this:
import com.fullermantutorials.SwitchUsage -

if you are importing more classes but dont want to specify every class by name u , use the wildcard character:
e.g
you'll often see codes like this:
import java.util.*
That statement imports all the classes in the java.util package.

by convention , package names are specified in lowercase letters.
classes, in uppercase.
You can't create a package that begins with java - that name is reserved to avoid confusion and clashes with the pre-built java packages.

print('1\b2\b3')

crotonite:


Plz can you help me upload the image as a downloadable attachment...

asalimpo:

if the op doesnt mind or his student ...

That statement creates a package - a group of related classes grouped together as a unit.
the package can be imported for use in other programs , facilitating code-reuse and avoiding name collision conflicts.
e.g if you have a class with the same name as a native class, you can differentiate yours and avoid confusing the compiler by placing yours in a package.

When compiled, a folder is created in the order of the package name. subfolders appear according to their
dot separation in the package name.
e.g
for the class SwitchUsage
in package
com.fullermannairalandtutorial
the following folder structure will be created com/fullermannairalandtutorials
with the class SwitchUsage in the last folder , fullermannairalandtutorials .


to use this class in other programs, you use the import statement.

like this:
import com.fullermantutorials.SwitchUsage -

if you are importing more classes but dont want to specify every class by name u , use the wildcard character:
e.g
you'll often see codes like this:
import java.util.*
That statement imports all the classes in the java.util package.

by convention , package names are specified in lowercase letters.
classes, in uppercase.
You can't create a package that begins with java - that name is reserved to avoid confusion and clashes with the pre-built java packages.

satmaniac:


This one strong o! See as I just dey sweat on top the assignment and still I am not making any headway. I have been having this illegal-start-of-an-expression error on my compiler. Hmm could it be that our teacher is trying to drive home some points about the difference in using the switch and the if-else-ifelse? Who don succeed make e come give me expo na. Or are we allowed to used google to helep solve this issue, our teacher Fulaman198?

Dekatron:
@Asalimpo and Fulaman198, how do I print a value together with another. I mean :- look at python :-

print('1\b2\b3')

would print :-

123 TOGETHER

String myString1 = "This is " ;
String myString2 = "Java " ;
String myString3 = "Programming." ;

System.out.println(myString1 + myString2 + myString3 );

Damoxy:
pls any link to download andriod studio tutorials for free for begineers and intermediates

Fulaman198:


Not sure what you want from me here bro.

Fulaman198:


I thought that this was discussed earlier, but if it was not, I'm sorry it should have been, it is called screen concatenation. To join strings together you simply use the '+' symbol.

E.g.

String myString1 = "This is " ;
String myString2 = "Java " ;
String myString3 = "Programming." ;

System.out.println(myString1 + myString2 + myString3 );

I hope that helps.

Fulaman198:


I thought that this was discussed earlier, but if it was not, I'm sorry it should have been, it is called screen concatenation. To join strings together you simply use the '+' symbol.

E.g.

String myString1 = "This is " ;
String myString2 = "Java " ;
String myString3 = "Programming." ;

System.out.println(myString1 + myString2 + myString3 );

I hope that helps.

System.out.print(myWhatever was here);

Fulaman198:


I thought that this was discussed earlier, but if it was not, I'm sorry it should have been, it is called screen concatenation. To join strings together you simply use the '+' symbol.

E.g.

String myString1 = "This is " ;
String myString2 = "Java " ;
String myString3 = "Programming." ;

System.out.println(myString1 + myString2 + myString3 );

I hope that helps.

Fulaman198:


Good explanation and to answer your question, I don't mind. I don't mind others chiming in from time to time. It saves me time and the effort