Answer Posted / alok kumar singh

JDK- JDK stands for java development kit which contain jre
and jvm and other supporting tools for development of programs.

JRE- JRE stands for java runtime environment which provide
the neccesory jar file that compile source code into byte
code. and it contain java virtual machine .

JVM- JVM stands for java virtual machine that convert byte
code into native code . the native code are those code that
are understandable by machine.

What are the methods available in a class?

1074

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What are the four versions of java?

1013

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What is the use of a conditional inclusion statement in Java ?

1092

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What is number data type in java?

1011

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Can keyword be used as identifier?

957

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Is math an abstract class in java?

1003

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What do you understand by the term singleton?

994

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Difference between nested and inner classes ?

1127

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What is void data type?

982

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What is the purpose of javac exe?

1090

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Why there are some null interface in java? What does it mean?

1123

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How do you reverse a word in java?

1072

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Can you have two constructors in java?

977

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What is field name?

1012

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How finally used under exception handling?

944

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