String is immutable, why? String str = new String("vds"); String newStr = "vds"; are the above different?
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Will Ask about array to write syntax with known variable and without known varibles eg:50 names of your friend,constructor and eg for that,polymorphism,method overloading and method overriding you need to tell correct definitions no own words or no explaining concepts interviewer will get angry if you use your own words
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string questions like equals method comparison array list,linked list,collections,thread,io filestream,constructor etc in objective java questions
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