CODEWITHSUNDEEP
javaarrays
Maverik
Maverik

Reputation: 2398

Retrieving array class name

I have I problem.

In a method I receive a general Object as parameter and I have to retrieve the name of the class

public void myMethod(Object o)
  String className = o.getClass().getName();
  ...
}

It works, except when i give to the methods arrays. For example if a pass to the method an array of double (double[]), getClass().getName() returns me [D

How can I retrieve something like double[]?

Upvotes: 8

Views: 12382

Answers (3)

Mostafa Barmshory
Mostafa Barmshory

Reputation: 2039

Simple name of the class is what you are looking for:

System.out.print(new String[0].getClass().getSimpleName());

and the result well be:

String[]

Upvotes: 6

Fortega
Fortega

Reputation: 19682

[D means an array of doubles. Check this link for an explanation on class names. Why would you like something like double[] instead?

Upvotes: 14

Anuj Balan
Anuj Balan

Reputation: 7729

If you give using the wrapper class, you get '[Ljava.lang.Double'

Double[] d = new Double[10]

d.getClass().getName() gives you [Ljava.lang.Double

Upvotes: 1

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