I created a graphical interface in a small program in Java. When you create the fields in the graphical interface, you have automatically created the actionPerformed(java.awt.event.ActionEvent evt) methods, which are automatically private methods. I created a JTextField to receive what the user types. Then I …
Tag: netbeans
Exception in thread “AWT-EventQueue-0” java.lang.RuntimeException: Uncompilable code – package org.netbeans.lib.awtextra does not exist [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 1 y…
Java warning: [options] system modules path not set in conjunction with -source 11
This machine has had multiple version of Java JDK installed and multiple version of multiple IDEs (Netbeans, IntelliJ, Eclipse, etc.) Most recently, I have added JDK 15.0.2 and Netbeans 12.2. When trying to compile a simple “Hello World”, this is the output that results: As you can see, the file c…
How to create txt file in source package folder sub folder ( source package -> invoice)
I need to create a .txt file in the invoices folder. I am using Windows 10. How can I do that? I’ve tried: and But it did not work. Thank you for your support. Answer As Jens said do not use a project source folder to write the file. At run-time of the standalone application there might not be a
NetBeans 12.0: “Class does not have a main method” (but it does)
NetBeans 12.0 Jdk 15 I cannot launch my program, clicking the green run button doesn’t do anything, and right click + run file on MainFrame gives the error “Class does not have a main method”. But as you can see in the GIF below, it does have a main(String args[]). Does anyone have any idea …
input arabic characters with scanner in maven project
i work on netbeans 8.2 and i create a java maven project, i want just take an input with arabic characters and display it and that don’t work properly : NOTES: i have already change netbeans configuration (/etc/netbeans.conf) to accept UTF-8 encoding but i have this probleme just with MAVEN projects. An…
Why is my random number generator becoming an unused assignment when using it to input values for 2d array?
I have been making a basic game of battleship and to get the CPU to choose ship locations on a 2d array I am making two random number generators to pick values from 1 to 8 on a separate method. For some reason, the random generators show up as unused and I don’t know why. so far this is what
How to calculate time difference using h format Java Netbeans
I am currently experimenting with a Self-Check in Airport Project. What I would like to do is enter the Time of Departure using the format (hour)h(minute) Example(14h40) I would have to validate this, by checking if the hour value is less than or equal to 23 and the minutes value is less than or equal to 59. …
Problem at calling a constructor if the java class is in a different path
I want to save the java classes in a folder called Classes, so on NetBeans, I have created that folder, and then I have saved it the class called Jugadores.java but after doing that i am having issues to call my constructor called regisPlayer on the main class. NetBeans says that: cannot find the simbol symbo…
How to Insert Data To Array
I want to save a “AromaNorm” into NormalisasiT1 array, but i had a error : AWT-EventQueue-0 java.lang.NullPointerException Can you help me? Here the Code Answer you should initialize the array the array is null so it throws NPE.