Java Scanner

Question

Hello I have a question about java scanner...
-----------------------------------------------------------------
java.util.Scanner;

Is there anyway to not print the value of the user's value and the question after the user entered the value, but stores the value of it? For example
_______________________________
Please enter a number:

*After I enter the number the output*

Please enter a number: 5
____________________________
Is there anyway not to show the "Please enter a number: 5" but get the data from the users?

In other words... How to hide the "Please enter a number: " after user enters the value of it?

Thank you
- Orange

Answer 1

I mean after the user enters the value, then how to hide the question?

LOL IS IT EVEN POSSIBLE to unprint something?🤣

For example :
______________________________
Step 1:
Enter a number :

Step 2:
*Me enters "8"*

Step 3: *the question hides away with the data "8".

_________________________

Answer 2

Unfortunately, this is not possible in Java while maintaining portability (usability on multiple platforms).

See: https://stackoverflow.com/a/15160810

Answer 3

you can use the systems way to clear the console. it will just push it up out of the screen.
for windows
Runtime.getRuntime().exec("cls");
for mac or Linux
Runtime.getRuntime().exec("clear");

Answer 4

Is your question is :
You want to take some no.values but you want ask only ones to ask to enter?
Or
you want to clear screen after reading?
For 1st one, it depends on your code.
For 2nd one, its better to use reading password method...

Answer 5

Why you need it?
In C, clrscr() method is available.
but does not support all compiler,(i guess).
In c++, some compiler support \b back space support for that.
In java also, this \b works in some compilers i guess.
But all this for user clear understanding purpose.

Answer 6

for the phrase "Please enter a number :"
it is displayed because you print it, Scanner has nothing to do with it. without it how is the user going to know what to do?
for the input "5" use
readPassword() to treat it like a password
readPassword is in
java.io.Console.readPassword