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What are the most important topics I have to learn in Core Java in order to become a powerful programmer?

Asked by Ishfaque 10/07/2017 Last Modified 11/10/2017

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I want to learn from beginning, please tell me what is the best source to learn (core java)

hi sunaini It is very good that you want to learn programming... I would recommend you c,c++,java and dotnet courses...for becoming a good provrammer.. we provide online training..at lowest prices if...

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How do I learn Java? From book or internet or a coaching?

According to me....u should start from basic Java..that is core Java... . Find coaching , who teaches Java for beginners.....then later u can go for advance java.

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What exactly the work of constructor( default, parameterized) especially about instance variables initialization. Suppose user initialize the instance variables explicitly. Then what is the use of parameterized constructor over here.. Please reply me

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Can u explain init() method is used in servlet for initialization then constructor also there for initializing variables.then what makes the difference between init() and default constructor in servlets?

Using init() only advisable than default constructor because we cannot initialize servlet using constructor because servlets are not directly instantiated by javacode, instead container create instance...

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