Javac Compiler Error[import package]

[pateldpk]

I need ur help friends... i m getting error when compiling a small java program....
i hav two java file..

location

1:-E:\Demo\org\dpk\first.java
2:-E:\Demo\org\helper\second.java

source code of first.java:-[When i compile this i got import package error line 2 & 5 [symbol not found]]
command[E:\Demo\org\dpk>javac first.java -classpath "E:\Demo\org\helper\helper.class"]
command[E:\Demo\org\dpk>javac first.java -classpath E:\Demo\org\helper\helper.class]
command[E:\Demo\org\dpk>javac first.java -classpath E:\Demo\org\helper]

package org.dpk;
import org.helper;-----error
public class first{
public static void main(String[] args){
second s=new second();------error
int result=s.call(5,2);
System.out.println("The Number is : "+result);
}
}


source code of second.java:-[this file compiled succesfully][E:\Demo\org\helper>javac second.java]

package org.helper;
public class second{
public int call(int a, int b){
int c=a+b;
return c;
}
}

[Norm]

You should set the classpath to the folder containing the org folder. The classpath + the package path is used to find the class definitions.

[pateldpk]

i already set with javac command... wt about package path... how to set it... actually javac compiler unable to find the classpath thats why givind this package import error...
[E:\Demo\org\dpk>javac first.java -classpath "E:\Demo\org\helper\helper.class" ...

cal u please help me what command i fire to compile first.java file...

[JosAH]

No, set your classpath to the value E:\Demo; the compiler will figure out the reset given the package names.

kind regards,

Jos

[Norm]

Does the classpath for the javac command point to the folder containing the org folder?

Post the contents of the command console window for when you execute the javac command.
To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

[pateldpk]

[pateldpk]

JosAH ... i have tried it classpath to the value E:\Demo; still same package not found error.....

[Norm]

Post the console contents for when you get the error.

[pateldpk]

i have posted the console content

[Norm]

tried it classpath to the value E:\Demo

Where is the console where you set the classpath to the Demo folder?

[pateldpk]

[Norm]

Why are there two threads for this?
import package error...... calling method of another java class from servlet...

[pateldpk]

actually the error concept is same... here i got problem to compile a simple java file.... and in another thread having problem to compile servlet... same error import package error.....

[pateldpk]

i tried everything... every option with javac ..... i dont know where is the problem... i'm just calling the method of another class.. so i just import the package... and also set the classpath then what is the another problem ..... is there any problem with JDK...?

[Norm]

This will be the thread to use from now on.

[Norm]

The classpath must point to the folder that contains the folder that is the start of the package path.

[DarrylBurke]

Use an uppercase letter at the start, and a single punctuation mark at the end of each sentence and more people might read your posts.

What do you hope to gain with all the .... ..... ..... anyway? Do you think the long chains of periods look pretty?

db

[Tolls]

The command with the '-cp E:/Demo' is correct.
The problem is this:

import org.helper;

You don't import packages in Java, you import classes.
You can indicate you want to import all classes in a package by using the wildcard '*'.
SO the above should be one of:

import org.helper.<your class name>;
import org.helper.*;

The first one is the preferred style.

[JosAH]

The syntax for the compiler is javac <options> <source files>; not the other way around so your classpath setting should come before the source file name.

kind regards,

Jos

[pateldpk]

@Tolls...I tried
import org.helper.second;
Or
import org.helper.*;
still getting same error....

@JosAH.... I tried both syntax ...Classpath before source file AND Classpath after source file.... Still same error....