I have string a[]=new a[4];
How to initialize a[0] = null;?
I need to have the following values in my array: a,null,b,null
I do not want to initialize when I declare my string array itself.
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1 Answer
You're using a to mean three different things - the array variable, a type, and a value within the array. That's clearly not going to work. However, you can do this:
String a = "hello";
String b = "there";
String[] array = { a, null, b, null };
or if you want to separate the declaration and initialization:
String[] array;
...
array = new String[] { a, null, b, null };
If you just create a new array, e.g.
String[] array = new String[4];
then all the element values will be null by default to start with, so you don't need to do anything else. You could do:
String[] array = new String[4];
array[0] = a;
array[2] = b;
If you need to set an element to null, you just do that in the obvious way:
array[0] = null;
1 Comment
Sanjay T. Sharma
Since the original question is marked with the tag "Java", the 'string' in your code snippets should be 'String'. :-)