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Properties - reposted

  • From: S.Sureshbabu@xxxxxxx (Sureshbabu, S)
  • Subject: Properties - reposted
  • Date: Thu, 30 Dec 1999 01:17:44 -0500
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Hi,

I too have observed that Properties' save() method doesn't work.But if you
observe ,even your p2.list(System.out);
 command doesn't work.Try with the code which I have pasted below.Properties
p2 is not necessary.


If you really need to write to a file,you can create a printwriter object
and then link to a file .

Regards
Sureshbabu


import java.util.*;
import java.io.*;

class P {
public static void main(String[] a) throws IOException {

Properties p1=new Properties(System.getProperties());
FileOutputStream f1=new FileOutputStream("O.O");
p1.list(System.out);
p1.save(f1, "Here it goes...");

/*
public synchronized void save(OutputStream out, String header)
Stores this property LIST to the specified output stream. The string
header is printed as a comment at the beginning of the stream.
*/

//Properties p2=new Properties();
FileInputStream f2=new FileInputStream("O.O");
//p1.load(f2);

/*Enumeration e = p1.propertyNames();
while(e.hasMoreElements())
{
         System.out.println("The properties are "+e.nextElement()); 
}*/
  
//System.out.println("The property names are "+);

f1.close();
f2.close();
}
} 



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charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2651.14">
<TITLE>RE: Properties - reposted</TITLE>
</HEAD>
<BODY>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Hi,</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I too have observed that Properties' =
save() method doesn't work.But if you observe ,even your =
p2.list(System.out);</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;command doesn't work.Try with =
the code which I have pasted below.Properties p2 is not =
necessary.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">If you really need to write to a =
file,you can create a printwriter object and then link to a file =
.</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Regards</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Sureshbabu</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">import java.util.*;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">import java.io.*;</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">class P {</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">public static void main(String[] a) =
throws IOException {</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Properties p1=3Dnew =
Properties(System.getProperties());</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">FileOutputStream f1=3Dnew =
FileOutputStream(&quot;O.O&quot;);</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">p1.list(System.out);</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">p1.save(f1, &quot;Here it =
goes...&quot;);</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">/*</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">public synchronized void =
save(OutputStream out, String header)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Stores this property LIST to the =
specified output stream. The string</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">header is printed as a comment at the =
beginning of the stream.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">*/</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">//Properties p2=3Dnew =
Properties();</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">FileInputStream f2=3Dnew =
FileInputStream(&quot;O.O&quot;);</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">//p1.load(f2);</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">/*Enumeration e =3D =
p1.propertyNames();</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">while(e.hasMoreElements())</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">{</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;The properties are &quot;+e.nextElement()); =
</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">}*/</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">//System.out.println(&quot;The =
property names are &quot;+);</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">f1.close();</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">f2.close();</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">}</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">}</FONT>=20
</P>
<BR>

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