String Array

[amolbehl]

public String[] gen,temp,backup;
 

Now I need to declare them as array of unknown size. I tried

// Try 1
this.gen    = new String[];
// Try 2
this.gen    = new String[' '];
 
 

Nothing seems to work can anyone help me with this please.

[r035198x]

public String[] gen,temp,backup;
 

Now I need to declare them as array of unknown size. I tried

// Try 1
this.gen    = new String[];
// Try 2
this.gen    = new String[' '];
 
 

Nothing seems to work can anyone help me with this please.

Why not throw everything away and use ArrayLists instead?

[hsn]

the last poster is correct.
if you want to create an array without a size you cant do that with a normal array you have to use ArrayList or Vectors.
with them you don't need to declare any size. you just add the element to the vector or to the arraylist.
good luck

[bchaib]

public String[] gen,temp,backup;
 

Now I need to declare them as array of unknown size. I tried

// Try 1
this.gen    = new String[];
// Try 2
this.gen    = new String[' '];
 
 

Nothing seems to work can anyone help me with this please.

If you don't know how many strings you are going to use don't use arrays but arraylists or other classes from collections ..
When you make this:
this.gen = new String[];
you have to tell the memory how many adresses it has to allocate for you array
for example

this.gen = new String[453234];
String[] gen; // declares an array of strings (strings = array of charachters)
gen= new String[196868]; // allocates memory for 196868 strings

gen[0] = new char{'a','b','c','d'}; // initialize first element

...

[JosAH]

gen[0] = new char{'a','b','c','d'}; // initialize first element
...

That of course doesn't even compile ...

kind regards,

Jos

[bchaib]

That of course doesn't even compile ...

kind regards,

Jos

That is absolutly not a Java implementation, but that's how it works ..

Implementation you should give a string
strVar[100] = some string

thanks
have a nice day

[amolbehl]

Wow thanx a lot arrrayList thing worked great for me thanx a lot everyone.