Java Working with Java

Post by Tarique Islam on July 16, 2013

I downloaded and setup netbeans (under Windows 8 OS).  It works with the simple Hello world stuff..Below is the program:

package myfirstjavaprogram;

/**
*
* @author Owner
*/
public class MyFirstJavaProgram {
int n;
   /**
    * @param args the command line arguments
    */
   public static void main(String args[]) {
       System.out.print("Hello world!
");

       
   }
}

But when I typed the "Import.util.Scanner;"  
It gives me error!  I tried it on the top, as well as within the package statement..
Help

Post by joseph kirksey on April 7, 2013

Is Java a good language fer beginners? i've read a little about C++ but the Syntax can be a bit overwhelming for me as a beginner.

Post by Rumman Ahmed on February 17, 2013

What are %d
and %f
? In the circle example why are we using %d
for diameter and %f
for area and circumference? What is the difference between %d
and %f
?

Post by Donna Parcel on February 1, 2013

Can you tell me what I'm doing wrong--I downloaded the 4 programs circle, search, find&replace, and calendar and tried to run them in JCreator, NetBeans and they won't run -- I get all kinds of errors.
Thanks Donna

Post by anuj singh on January 20, 2013

I am getting error with the dot operator when i try to compile the calendar program on dos what can be the possible reason ?

Post by Harlan Reece on December 30, 2012

I tried running the circle program through Netbeans with partial success. My compile was successful, but I did not see a prompt to enter data in the output window. In addition to this problem, I do not see an option to set as Main project option. Is there a preference option where I can set this. When I type enter my project name, it does not simultaneously provide a .Main extension in the Create Main Class field as it does in the video, but rather creates an extension with the exact same name as the project file. What am I doing wrong. Had absolutely no success in running program from DOS prompt. What am I doing wrong?

Post by Patricia Edwards on November 11, 2012

in the command line
index = str.indexOf("c");

is the index of str.indexOf the same index as the variable initialized to 0 in the statement above? How does that work?

Post by Jozsef Kovacs on October 30, 2012

Where can I find java.util.Scanner?

Post by Dalbir singh on August 26, 2012

In Circle Geometry example: line 17, 18, 19 why use System.out.printf? why not System.out.println? and how do we know which one to use and when?

Post by george masih on June 11, 2012

scanner sc = new scanner(system.in);
statement is not working i am using ecllipse editor.any body call tell what is wrong with that?

Post by Kwasi Roberts on March 29, 2012

On line 13 on the "Find and Replace" section can you explain tht whole line especially text.replace please?

Post by Thomas James Hanrahan on September 29, 2011

Because for some reason the java.util.Calendar; causes the output to be one month behind. I guess that is why you always try to "Break" your code once its complete so you don't run into problems like this.

with +1
Today's date is;9-29-2011
Tomorrow's date will be: 9-30-2011

Without +1
Today's date is;8-29-2011
Tomorrow's date will be: 8-30-2011

Post by Alvaro Lacerda on September 7, 2011

On the 10th line of the calendar program, why do you add "+1" after the "(Calendar.MONTH)"? why that doesn't happen to the other lines "(Calendar.DATE)" and "(Calendar.YEAR)" ?


Thanks,