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What are Java native APIs?

Asked by S. 08/07/2017 Last Modified 10/07/2017

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public class X { public static void main(String [] args) { X x = new X(); X x2 = m1(x); /* Line 6 */ X x4 = new X(); x2 = x4; /* Line 8 */ doComplexStuff(); } static X m1(X mx) { mx = new X(); return mx; } } After line 8 runs. how many objects are eligible for garbage collection?

Only one. After line 8 the original object referred to by x2 is dereferenced and ready for garbage collection. In m1(), mx ignores the object passed as argument and refers to a new object which is returned.

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If a class contains only a private constructor and no other constructor, is it possible to create object of that class? If yes how?

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Is it good to go for a Java coaching center and learn Java (with advanced Java) to improve my programming skills?

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Why Java Laguage is not provided get method into Iterator? is there any specific reson.

1) Iterator is an Interface. 2) It's sole purpose is to iterate not save value. POJO's have getters and setters.

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