What is the purpose of garbage collection in java, and when is it used?

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Tell me the difference between an applet and a Japplet?

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Hai all I want to print given array in reverse order Ex: int a[]={1,2,3,4,5};display this array in reverse order.

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Why do we need data serialization?

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How does serialization work

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What is compareto () in java?

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What loop means?

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How do you declare an empty string?

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How to excute - Interface - Inner class- method can any one tell how to execute/ call this main method public interface abc { static int i=0; void dd(); class a1 { a1() { int j; System.out.println("inside"); }; public static void main(String a1[]) { System.out.println("in interfia"); } } }

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Is java type safe?

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84. try { 85. ResourceConnection con = resourceFactory.getConnection(); 86. Results r = con.query(”GET INFO FROM CUSTOMER”); 87. info = r.getData(); 88. con.close(); 89. } catch (ResourceException re) { 90. errorLog.write(re.getMessage()); 91. } 92. return info; Which is true if a ResourceException is thrown on line 86? 1 Line 92 will not execute. 2 The connection will not be retrieved in line 85. 3 The resource connection will not be closed on line 88. 4 The enclosing method will throw an exception to its caller.

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What is difference between equals and hashcode method?

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