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Core Java Interview Questions
Questions Answers Views Company eMail

write a program that list all permutations of ABCDEF in which A appears before B?

Nissan,

1572

why an outer class cannot be declared as private?

 1 2985

What is abstraction with strong example program? (not a general program)

 3 3789

Why Java is called as purely platform independent..? Explain briefly..dont Give regular answers Explain with your own example..?

Nokia,

8 27535

Can any one say how will sort map objects in java?

TCS,

2 3410

How can u create the Object of class Without using "New" opertor?

IBM, TCS,

3 6157

How can two threads be made to communicate with each other?

HCL,

3 6575

Static Variable can referred in non-static method?

 3 3221

when we create singleton design then we create private constructtor..so how JVM take private constructor to make object..but it's private..

Ness Technologies,

1 3672

Why transient variables wont participate in serialization?

 2 4125

what is ststic with example

Wipro,

1189

what is purpose of collections.unmodified() method..?

Accenture,

1 10000

what is purpose of writting public static void main(Strind arg[]) in java..?

ITC Infotech,

4 4939

What is the code inside the public void actionPerformed(ActionEvent ae) override method in Applet [ Condition:- you have one TextField and One Button , you have to enter any color name inside the TextField, when you click on Button Your background will change according to your input color name]

IBM,

2 8580

how to identify duplicate values in arraylist

TCS,

2 3621

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Un-Answered Questions { Core Java }

What is queue in java?

109

What is static synchronization?

142

What is array length?

114

Is this valid in java ? Can we instantiate interface in java?

169

Is singleton set an interval?

105




Does anyone still use java?

122

What is the different between get and post?

111

What is the difference between overriding and overloading in OOPS.

171

What are the core java topics?

119

What are the different types of inner classes?

114

Why string is popular hashmap key in java?

171

Can we overload final method in java?

106

What is files manifesting?

1317

What is the purpose of stub and skeleton?

140

Which is a valid identifier?

138

For More Un-Answered { Core Java } Questions Click Here