Do not nunderstand what "\\" means

[csphard]

I am trying to understand some java code we are using to unzip files.

What I do not understand is the part where it
says FileOutputStream(Extract_to+"\\"+str);
What does "\\" this mean.. Why not just "\"
I am guesting that these \\ is extract_to\str

"\\" this is not an operator right?

howard



create or replace and compile java source named "myjavaunzip"
as
import java.io.*;
import java.util.*;
import java.util.zip.*;
import java.text.*;
import java.lang.*;

class myjavaunzip
{
public static void unzip(String zip_name,String Extract_to)
throws Exception
{
ZipEntry ze;
String str;
int n=0;
FileInputStream fis=new FileInputStream(zip_name);
ZipInputStream zis=new ZipInputStream(fis);
while (true)
{
ze=zis.getNextEntry();
if (ze==null)
break;
str=ze.getName();
int x = fis.available();
byte [] rgb = new byte [x];
FileOutputStream fout = new FileOutputStream(Extract_to+"\\"+str);
while((n=zis.read(rgb))>-1)
{
fout.write(rgb,0,n);
}
fout.close();
zis.closeEntry();
}
zis.close();
fis.close();
}
}
/

 

[preachie]

Hi,

you build up a string here with the parts:
value of the variable Extract_to
the string \
value of the variable str

You have to escape the \ otherwise the tailing double quote would be part of the string and you get a syntax error because the string is not closed with a double quote.

I.e. you want to print out the string

Hello "my" world

You would do something like that: System.out.println("Hello \"my\" world")

Take a look at

http://java.sun.com/docs/books/tutorial/java/data/characters.html

maybe this is more clear than my explanations