problems faced in StringArray!

I declared a String -

  String operand[];

and i tried to initialize it as

operand[]0=string[2];(string[2]="buffer,x")

and it is returning a NPE,

The same happened while printing-

System.out.println(operand[1]);
开发者_如何转开发

is there any simple way to get this done?

thankyou!

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Yes. You need to assign a real string array to operand first.

String[] operand = new String[3];  // or whatever number of elements you want

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Not sure what you are looking for but this will work:

String[] operand = new String[] { string[2] };
System.out.println(operand[0]);

Chris is also correct in what he is saying.

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In java you cannot use an array object without initializing it, which you are trying to do now. when you do this String operand[]; it just declares that operand is an array of String but it wont allocates memory until you initialize it with new operator. So it throwing NPE.