如何将类传递给函数并在函数中实例化该类的对象？

Question

Something like this. The way the class is passed is probably correct but the object instantiation method does not work. Should I approach this differently?

private void init() {
    makeObject(ClassA.class);
    makeObject(ClassB.class);
    makeObject(ClassC.class);
}

private void makeObject(Class<?> myClass) {
    new myClass();
}

Answer 1

You use reflection to create an instance from a Class object :

private void makeObject(Class<?> myClass) {
    Object o = myClass.newInstace();
}

Of course you probably want to return the created instance from your method, and you have to handle some checked exceptions that newInstance may throw.