reading from standard input in java

spank · 10-17-2006, 09:21 AM

I want to read for example a int or a float from stdin in java.
something like

Code:

int i;
scanf("%d",&i);

in c.

any idea on how to do this ?
i'm a beginner in java so try to give me some time

thanks!

indienick · 10-17-2006, 10:16 AM

If you want to read input, try:

Code:

java.util.Scanner inputReader = new java.util.Scanner(System.in);

int number;
System.out.print("Prompt:> ");
number = inputReader.nextInt();

There's other ways to do this, but this is the easiest, and the cleanest in my opinion.

spank · 10-17-2006, 10:44 AM

works great... thank you. for start it is very confusing for my the large amount of implemented function that i have to learn to get along. in c i was used to make all from scratch

indienick · 10-17-2006, 06:58 PM

It's all good. One thing I would suggest doing if you're going to get serious into Java programming, is to pick up Java In A Nutshell. It covers all of the basic classes (no GUI classes - java.awt.* & javax.swing.*).

Sidenote: I just noticed the price of Java In A Nutshell - used & new copies for less than $20 USD!!! When I got that book last year, I paid about $70 CAD after tax!