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CORE JAVA 8 - Basics

JAVA Category

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CORE JAVA 8 - Basics : Question 1 of 13

Which is a valid keyword in java?

1 Mark(s)

interface
String
Float
Unsigned

Java Object oriented programming is/are

1 Mark(s)

Encapsulation
Inheritance
Polymorphism
All of the above

Platform independent code file created Source file is understandable by ____________

1 Mark(s)

JRE
Compiler
JVM
none of these

Java does not support ___________

1 Mark(s)

Inheritance
Multiple inheritance for classes
Multiple inheritance for interfaces
Compile time polymorphism

Java allow, Same program to be executed on multiple Operating System?

1 Mark(s)

True
False

Which component is responsible to run java program? Which component is responsible to run java program?

1 Mark(s)

Which component is responsible for converting byte code into machine specific code? Which component is responsible for converting byte code into machine specific code?

1 Mark(s)

JAVA is a …………….. language? JAVA is a …………….. language?

1 Mark(s)

weakely typed
strongly typed
moderate typed
none of these

What is the extension of compiled java classes? What is the extension of compiled java classes?

1 Mark(s)

.class
.java
.txt
.js

Which one is used to compile and execute java program? Which one is used to compile and execute java program?

1 Mark(s)

What is the extension of java code files? What is the extension of java code files?

1 Mark(s)

.class
.java
.txt
.js

Size of int in java is? Size of int in java is?

1 Mark(s)

16 bit
32 bit
64 bit
Depends on execution environment

How many primitive data types are there in JAVA? How many primitive data types are there in JAVA?

1 Mark(s)

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