You're given a Boolean 2D matrix, can you find the number of islands?

0 Answers   Amazon,

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How many types of operators are there?

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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.

1 Answers  

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What is actual difference between statement,prepared statement and callable statement and when we have to use it? pls post a answer with code and clear explanation. thanks

2 Answers  

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Can we use synchronized block for primitives?

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How do you use compareto in java?

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What is the return type of read()?

3 Answers  

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Explain static nested classes ?

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Why do we use string?

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How to declare unique ArrayList ?

6 Answers   RMSI,

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Which are different kinds of source code?

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Is a string literal?

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