Explain the importance of join() method in thread class?

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What is the arguement of main method?

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What is identifier give example?

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when i write string s1="java"; in one program(application) and string s2="java"; in another application on the same jvm will both objects s2,s2 will refer to same memory location where "java" is stored in string pool.

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Difference between Choice and a List?

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What is collection api?

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What is the use of set in java?

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Can we catch more than one exception in single catch block?

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33. try { 34. // some code here 35. } catch (NullPointerException e1) { 36. System.out.print(”a”); 37. } catch (RuntimeException e2) { 38. System.out.print(”b”); 39. } finally { 40. System.out.print(”c”); 41. } What is the result if a NullPointerException occurs on line 34? 1 c 2 a 3 ab 4 ac

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What do you mean by constructor?

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explain me with a code snippet about the generation and handling of null point exceptions.

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How many types of java are there?

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