Check if object is of type String

Question

I need to write a new method that checks if certain values are of the type String or not.

I have two objects and I want to be able to check if these two objects are strings, if they are to then return true, and false otherwise.

I did start off with the following method:

public boolean stringTest()
{  
    boolean aString;
}

But could not get anything to work after that, any help would be greatly appreciated!

These two variables already are `String`'s. If you have an `Object` variable you can check, whether it is a `String` class instance via `myObj instanceof String` — , May 09 '16 at 18:19
I do apologise, I've misread the question. It is indeed an object that I am checking! — Joe, May 09 '16 at 18:27
what do you mean by string? do you mean don't have numerical characters in it(and ofcourse that is not the definition of string)? — Alikbar, May 09 '16 at 18:28

score 4 · Accepted Answer · edited May 09 '16 at 18:25

4

You can make use of instanceof and rewrite your method

public boolean stringTest(Object any)
{  
   return any instanceof String;

}

then

stringTest(townName); // true
stringTest(new Integer()); // false

edited May 09 '16 at 18:25

answered May 09 '16 at 18:18

Suresh Atta

score 0 · Answer 2 · answered May 09 '16 at 18:18

0

Use instanceof:

public boolean isString(Object o) {
    return o instanceof String;
}

answered May 09 '16 at 18:18

Zircon

2 Answers2