Answer Posted / supraja

Arrays
Has special language support
• Iterators
Iterator (i)
• Collections (also called containers)
Collection (i)
Set (i),
HashSet (c), TreeSet (c)
List (i),
ArrayList (c), LinkedList (c)
Map (i),
HashMap (c), TreeMap (c)

What do you mean Abstraction in java?

695

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what do you mean by stream pipelining in java 8? Explain

617

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What is the use of using enum to declare a constant?

647

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How do you stop a thread in java?

696

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Why char array is preferred over string for storing password?

684

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Which collection is ordered in java?

631

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What methodology can be utilized to link to a database?

596

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Is void a data type?

622

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What is oop in java?

611

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What is the old name of java?

594

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What is ‘is-a ‘ relationship in java?

678

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Is there any way to find whether software installed in the system is registered by just providing the .exe file? I have tried the following code but its just displaying the directory structure in the registry. Here the code : package com.msi.intaller; import java.util.Iterator; import ca.beq.util.win32.registry.RegistryKey; import ca.beq.util.win32.registry.RootKey; public class RegistryFinder { public static void main(String... args) throws Exception { RegistryKey.initialize(RegistryFinder.class.getResource("jRe gistryKey.dll").getFile()); RegistryKey key = new RegistryKey(RootKey.HKLM, "Software\\ODBC"); for (Iterator subkeys = key.subkeys(); subkeys.hasNext();) { RegistryKey subkey = subkeys.next(); System.out.println(subkey.getName()); // You need to check here if there's anything which matches "Mozilla FireFox". } } }

1446

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Which of the following is not an isolation level in the JDBC

1717

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Why to use nested classes in java?

678

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How do you call a reference in java?

597

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