Reflection Method.getParameterTypes()‬ - array of objects parameter

Question

I am using reflection to get all methods parameters names.

The problem is when one of the parameters is of type: the.package.myobject [] (array)

String name = method.getParameterTypes()‬[0].getName()

I get: [the.package.myobject;] //letter L and symbol ;

how can I get pure type name? (without substringing)

AlexR · Accepted Answer · 2012-11-14 13:22:56Z

8

You need to check type.isArray() and, if yes, use getComponentType().

final Class<?> c = method.getParameterTypes()[0];
final String name = (c.isArray()? c.getComponentType() : c).getName();

AlexR

116k16 gold badges137 silver badges216 bronze badges

answered Nov 14, 2012 at 13:20

Marko Topolnik

201k31 gold badges336 silver badges455 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Peter Lawrey · Accepted Answer · 2012-11-14 13:18:49Z

1

Most likely what you want is

Class firstType = method.getParameterTypes()‬[0];

// will be null if not an array.
Class firstComponentType = firstType.getComponentType();

answered Nov 14, 2012 at 13:18

Peter Lawrey

535k83 gold badges770 silver badges1.2k bronze badges

sorry it was a typo, please see my post again.