How to get the class of type variable in Java Generics

Question

I've seen similar questions but they didnt help very much.

For instance I've got this Generic Class:

public class ContainerTest<T> {      public void doSomething()     {         //I want here to determinate the Class of the type argument (In this case String)     } } 

and Another Class which uses this Container Class

public class TestCase {      private ContainerTest<String> containerTest;      public void someMethod()     {         containerTest.doSomething();     } } 

Is it possible to determinate the Class of the type argument in method doSomething() without having an explicit type variable/field or any constructor in ContainerTest Class?

Update: Changed format of ContainerTest Class

Answer 1

The only way is to store the class in an instance variable and require it as an argument of the constructor:

public class ContainerTest<T> {     private Class<T> tClass;     public ContainerTest(Class<T> tClass) {         this.tCLass = tClass;     }      public void doSomething()     {         //access tClass here     } }