Can't instantiate class, no empty constructor, SQLiteHelper
Date : March 29 2020, 07:55 AM
Hope this helps The error is clear - you didn't write a no-arg constructor, yet the code requires one.
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java.lang.RuntimeException: Unable to instantiate service {....} can't instantiate class; no empty constructor
Date : March 29 2020, 07:55 AM
I hope this helps you . First, you cannot have a Service that is an ordinary nested class. It would have to be a static nested class.
Second, having a Service that is a static nested class of an Activity is very strange.
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How does default constructor used to instantiate object if it's super class no argument constructor has empty body?
Tag : java , By : ArdentRogue
Date : March 29 2020, 07:55 AM
hop of those help? default constructor invoke no_argument constructor in super class reference and this last constructor used to instantiate object from this class,How ? i mean what does superclass constructor body exactly do ? , The syntax for calling a superclass constructor is super();
super(parameter list);
Fragment.class.getConstructor().newInstance();
Child a = new Child() ;
a.getClass().getSuperclass().getConstructor().newInstance();
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Can't instantiate class ...; no empty constructor
Tag : java , By : Yohan Lee
Date : March 29 2020, 07:55 AM
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can't instantiate class; no empty constructor
Tag : java , By : user104292
Date : March 29 2020, 07:55 AM
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