I am trying to save all packages in lib/Package folder and my main program where i want to >import it is save in src file as shown in picture. How could i import Add package to perform
task. I m new in java.
the path of package is C:\Users\user_name\Documents\GitHub\NewProjectA\lib\packages
the path of main file is C:\Users\sumit\Documents\GitHub\NewProjectA\src
please help me to understand it in a easy way. That how can i import a package in the main
For that you need to create package under your src folder or create a diffrent moduke and import it
You should move the lib folder into the src folder. All code in a java project will be under the src file. Therefore the Source name.
Related
I've created a default package xyz and within this package I have created a folder x so now there is a package by the name of xyz.x. Now in the main file of the regular package xyz I am trying to make it extend a class located inside of that folder xyz.x.
How do I do this? and How do I import that folder? I've already went to the Project properties, then libraries and under compiler, added a folder path to the folder I've just created.
If you created a project netbeans just use the project path to reach your desired Class:
package javaapplication5.xyz;
import javaapplication5.xyz.x.InsideX;
public class InsideXYZ extends InsideX {
}
So there is a folder in which there is the main.java file and a folder in which is a class,
how to import the class in main from the folder?
Direct folder import can't be achieved in java.
Following can be done
Package the other java class as jar
Include that jar in classpath of main program
Import the other java class in main program
Given your question, I'm assuming that you're a beginner. Here are the steps to follow for Eclipse IDE:
Under the class (which you want to import) go to: File -> Export -> Java -> Jar file.
Choose the resources to export and select a destination for the jar file.
In the project where you want to import the file, go to: Java Build Path -> Libraries -> Add External Jar -> Choose the jar file.
In the class where you need to use the file, write: import com.xxx.yyyy; (Package name).
Suppose we have the following:
LibA.Package1
SomeClass.class
LibA.Package2
Main.java
In your main file, you will need to use the full import path in the Main.java
import LibA.Folder1.SomeClass
See the following question for reference
I am trying to sort my classes into packages but i can't import them.
My files are in the following folders:
- .java files are in C:\Java\Code\src\my\app\Timer
- .class files are in C:\Java\Code\compiled\my\app\Timer
In my class (timer) i've added package my.app;
Also, I have setted the CLASSPATH to look in both src and compiled folders.
Then, I have another folder where I put my "bigger" projects in:
- C:\Java\Projects\myProject
The problem is that when I try to import the class Timer into MyProject using import my.app.*; all I get is:
Error: package my.app does not exist
Culd you please give me a hand?
PS. My IDE is Dr.Java
I have found the problem.
It appears that Dr.Java ignores complitely the CLASSPATH variable. It is necessary to set in preferences where are the .class files.
I'm trying to import a package to a class to make some tests creating a particular class and to instance some objects.
So, I create a source folder (asdsad) and put a class in there, after I tried to import Produtos.GestaoDeContrato.Mapeamentos.Telas.* but doesn't work.
Is it possible to do this?
UPDATE 01
Thanks for the answers, I tried to do this, but I don't know if I did what you said, that is correct? Because doesn't works
Please, pardon my english.
If the class you are trying to instantiate is in a separate project as I can see, then you need to to add this class to your current's project class path.Or you can place the class in the same project but in a different package !
You need to place all the java classes in the src folder of the project in eclipse unless you are trying to import from the jar file
but if you have multiple projects you can go to properties>build
path> Libraries > Add Class Folder > The select the required java
package of the proj you need.
I am trying to import some existing projects into Eclipse.
The structures for their packages is:
Project/
/src
/java
/a
/b
/c
Once imported in the package explorer I see:
Project
src/java
--a
--b
--c
- AClass.java
This is ok, since the classes e.g. AClass.java are defined in package: a.b.c
But in one project the structure (once imported) becomes:
Project
src
--java
--a
--b
--c
- AClass.java
And that causes the error that AClass.java is defined to be in package a.b.c but it is actually under java.a.b.c
Why is this happening? Why in this specific project java is not ignored as part of package?
Thanks
How are you creating the Eclipse projects? It sounds like you just need to put "java" as a root on on the source path here, instead of "src". You can do this by editing the build path after the import process, of course.
Remove the existing source folders first. -right click -> menu -> build path -> remove from build path
then
Right click on the source folder. build path -> use as source folder.
Seems like your settings are pointing to the parent of the source folder so src is recognized as package by eclipse.
Wrong package name when using automatically added imports in Eclipse
call the package on the top of your import statements,
like if your class is in java/main/org/goal/Main.java
then the path is package java.main.org.goal;
else do Ctrl +1 and it suggest some quick help
import the necessary package from that
Use this sentence import java.io.*; at the top of java file. Otherwise, you have to create package folder.
Import statements:
In Java if a fully qualified name, which includes the package and the class name, is given then the compiler can easily locate the source code or classes. Import statement is a way of giving the proper location for the compiler to find that particular class.
For example, the following line would ask compiler to load all the classes available in directory java_installation/java/io :
import java.io.*;