Answer Posted / pradeep

the wrapper class is used for accessing the primtive data
type for to the object.

What is the difference between quicksort & mergesort? When should they be used? What is their running time?

1089

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Which sorting is best in java?

1006

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What is are packages?

1038

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What all methods are used to prevent thread execution ?

1036

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How to run a JAR file through command prompt?

1284

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Explain with example the concept of constant variable in java.

1186

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What are unchecked exceptions in java?

1045

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Is java still necessary?

1085

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Can we have a method name same as class name in java?

1060

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What is difference between word and integer?

1084

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Explain about the main() method in java?

1116

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What is the difference between an interface and an abstract class?

1006

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How to create an interface?

1091

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Can a class have an interface?

998

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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". } } }

1804

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