Java - scanner package for user input

[Shaan12]

Hello,
Here is a problem, I want to read data from keyboard in java. I work in back, I wrote a small program when compiling no problem but then the execution an exception this product. If you have an sample code regarding the same then please let me know. Thanks for your replies.

[Jensen Ackles]

Hello,
Try the following code

import java.io. *; 

class test 
public static void main (String [] args) throws IOException ( 
BufferedReader kb = new BufferedReader (new InputStreamReader (System.in)); 


int rw, clm; 
System.out.println ("please input the number of rows:"); 

rw = Integer.parseInt (temp.readLine ()) / / reading the entire 
System.out.println ("please input the number of columns:"); 

clm = Integer.parseInt (temp.readLine ()) / / reading the entire 
) 
)

See if this can help you How to read user input from console using Scanner class in java?

[NetworkeR]

This is the main part of your code

BufferedReader = new BufferedReader kb (new InputStreamReader (System.in)); 
String cm = ""; 
System.out.println ("please enter the number of columns:"); 
try ( 
kb.readLine cm = (); 
) 
catch (IOException e) ( 
System.out.println ("Error"); 
) 
try ( 
int cm = Integer.parseInt (cm); 
) 
catch (IOException e) (
System.out.println ("you have input, a string of characters, re veuillee input a number"); 
)

[Miles Runner]

Take for example the case

try 
( 
int ln = Integer.parseInt (ln); 
) 
catch (IOException e) (
System.out.println ("you have input, a string of characters, input a number"); 
)

This is the basic structure of the code

[Captain Carrot]

I tried the above as you have explained in the post. Always the same mistake it did not change, thank you for your help, for the code I gave the class with a scanner which has found what is wrong? I do not know what exactly is wrong with scanner, if you guys know any alternate method then please let me know. Thank you.