FileNotFound exception

[shawn peter]

this is my class

package my;

import java.util.Properties;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.*;

public class connect {

	public static void main(String[] args) {
		 Properties props = new Properties();

		try {
			props.load(new FileInputStream("properties"));
			
		} catch (FileNotFoundException e)
		{
			e.printStackTrace();
		} catch (IOException e) 
		{
			e.printStackTrace();
		}
		
		
		String x=props.getProperty("database");
		
		System.out.println("xxxxxxxxxx"+x);
		
	}

	
	
}

my properties file also in package called my.
but it gives this error

java.io.FileNotFoundException: ..\properties (The system cannot find the file specified)
	at java.io.FileInputStream.open(Native Method)
	at java.io.FileInputStream.<init>(Unknown Source)
	at java.io.FileInputStream.<init>(Unknown Source)
	at my.connect.main(connect.java:15)
xxxxxxxxxxnull

[Balu Sadhasivam]

Aruna,
Its should be absolute path of the properties file.

[Ernest Friedman-Hill]

Aruna,
Its should be absolute path of the properties file.

True, but not very practical, is it?

The path used by the FileInputStream constructor is relative to the current working directory of the JVM; it has nothing to do with the package structure. If you want paths relative to your class files, use Class.getResource() to open the file instead.

[Balu Sadhasivam]

True, but not very practical, is it?

Yup ,especially when the application is to shipped to different machine. Class.getResourceAsStream or ClassLoader.getResourceAsStream is good candidate then.

[shawn peter]

can anyone tell me how to use getResource() in this case

[Balu Sadhasivam]

Read this

[shawn peter]

I change my code to this .but still error

package my;

import java.util.Properties;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.sql.*;

public class connect {

	void check(){
		
		 Properties props = new Properties();

			try {
				//FileInputStream url= this.getClass().getResourceAsStream("properties");
				
				URL url = this.getClass().getResource("../properties");
				InputStream is = url.openStream();
				
				props.load(is);
				
			} catch (FileNotFoundException e)
			{
				e.printStackTrace();
			} catch (IOException e) 
			{
				e.printStackTrace();
			}
			
			
			String x=props.getProperty("database");
			
			System.out.println("xxxxxxxxxx"+x);
		
	}
	
	public static void main(String[] args) {
		
		connect c=new connect();
		c.check();
	}

	
	
}

Error

Exception in thread "main" java.lang.NullPointerException
	at my.connect.check(connect.java:21)
	at my.connect.main(connect.java:43)

[Manhar Puri]

I am not sure why you commented out the line

FileInputStream url= this.getClass().getResourceAsStream("properties");

Is there a reason for changing the path from "properties" to "../properties"?

Try the code below:

    
InputStream url = this.getClass().getResourceAsStream("properties");
props.load(url);

Also please provide the name of your properties file as well location.

[Balu Sadhasivam]

FileInputStream url= this.getClass().getResourceAsStream("properties");

ClassLoader does not add any extension !! Provide complete file name with extn if there is any.