How to clear buffer in Java?

[ares623]

i have a problem with my Java program..
i need to input 2 Strings and 1 char using a Scanner object named console..
so i use

Scanner console = new Scanner(System.in);
...
String First = console.nextLine();
char Middle = console.next().charAt(0);
String Last = console.nextLine();

now, it works fine the first time, but when I want to input again, it skips First and asks for Middle right away (especially when First or Last has blank spaces).
i read about clearing input buffers in C when I had a similar problem, but how do I do it in Java?

[cold_fusion]

Try to issue a read on the System.in InputStream.
Or you could call mark() to all available() buffer and then reset() on it to flush the data of the default InputStream.

[ares623]

unsaon na bro? thanks..

[cold_fusion]

while (System.in.read() != -1)
  continue;

[ares623]

so i just add that code somewhere, and it will clear the buffer?

[ares623]

just tried what you suggested, doesn't work though...
thanks btw..

[cold_fusion]

The code above will remove all pending characters from System.in .
But maybe this is not what you need in your program.

Could you post a compilable subset of your program for us to test and debug on our side.

[ares623]

thanks for helping me bai..
here is a snippet of the method that does the inputting

System.out.print("Enter first name: ");
customer.setFirstName(console.nextLine());
		
System.out.print("Enter middle initial: ");
customer.setMI(console.nextLine().charAt(0));
		
System.out.print("Enter last name: ");
customer.setLastName(console.nextLine());
		
double balTemp;
do{
  System.out.print("Enter account balance: ");
  balTemp = console.nextDouble();
  if(balTemp >= 5000)
    break;
  System.out.print("5000.00 is required. ");
}while(balTemp < 5000);

the First and Last name need to be able to accept strings with spaces..

[cold_fusion]

use next() instead of nextLine()

[ares623]

afaik, next() doesn't accept spaces.. i tried it and it messed things up. i'll try again though...
edit: just used next(), InputMismatchException is thrown because nextDouble() gets a string when i enter a blank space..