1. _________ invented Java Programming.
Answer: James Gosling
2. Java was developed by _____________
Answer: Sun Microsystem
3. Full form of JVM _____________
Answer: Java Virtual Machine
4. Java is a __________ language.
Answer: Platform Independent
5. Java language was initially called as _________
Answer: Oak
6. ________ is father of Java.
Answer: James Gosling
7. JDK stands for ______________.
Answer: Java Development Kit
8. JRE stands for _________.
Answer: Java Runtime Environment
9. javac is a Java _____________ which provides the keywords and syntax along with data types, operators that are used in Java.
Answer: compiler
10. JAR in Java stands for _______________.
Answer: Java Archive
11. _________ is a software that interprets Java bytecode.
Answer: Java Virtual Machine
12. Java compiler translates Java source code into _______.
Answer: bytecode
13. _____________ is at the core of Java.
Answer: Object Oriented Programming
14. Objects in java are _________
Answer: references
15. The extension of Java source code file is_________.
Answer: .java
16. The extension of a Java bytecode file is_________.
Answer:Â Â .class
17. A .class file contains ___________
Answer: bytecodes
18. Upper case and lower case of the same letter are treated different in Java. Thus, Java is case _____________.
Answer: sensitive
19. ______ is used to compile, debug and execute the java programs.
Answer: JDK
20. The public static void main(String[] args) { … } method is the entry point of a ________ program.
Answer: Java
21. An integer variable in Java can be declared using the keyword _________.
Answer: int
22. Keywords are also called _____________ words.
Answer: reserved
23. Every statement in Java ends with ____________.
Answer: semicolon (;)
24. Java has a simple type, called ____________
Answer: boolean
25. The smallest integer type is _____________
Answer: byte
26. The most commonly used integer type is __________
Answer: int
27. In Java, the data type used to store characters is _________
Answer: char
28. Multiline comment is created using __________.
Answer: /*Â Â Â Â Â */
29. An essential element of object-oriented programming is ___________
Answer: abstraction
30. The data, or variables defined within a class are called ___________
Answer: instance variable
31. The ________ operator is used to concatenate strings in Java.
Answer: +
32. __________ operator is used for logical “AND” operation.
Answer: &&
33. The operator that returns the remainder of the division of two operands is called _____________, its symbol is __________
Answer: modulus operator or remainder operator, %
34. An if statement allows for conditional execution of code based on a/an __________ expression.
Answer: boolean
35. The _________ keyword is used to exit a loop prematurely.
Answer: break
36. Java program processing always starts from __________ methodÂ
Answer: main()
37. Every Java application has a _________ method that tells how and in what sequence other methods are used.
Answer: main()
38. ________ is the entry point of a program in Java.
Answer: main() method
39. An ___________ is a group of liked-typed variables that are referred to by a common name.
Answer: array
40. An array in Java is a collection of items of the _________ data type.
Answer: same
41. The length of an array can be accessed using the _________ method.
Answer: length
42. The __________ keyword is used to define a class in Java.
Answer: class
43. A class in Java starts with the keyword ___________followed by a valid identifier.
Answer: class
44. __________ class in Java is used to take input from the user.
Answer: Scanner
45. __________ method used to take a string as input in Java.
Answer: nextLine()
46. ___________ class contains the methods used to write in a file.
Answer: FileInputStream
47. The ___________ method is used to read data from a file in Java.
 Answer: readLine()
48. The ____ class is used to read data from a file in Java.
 Answer: FileReader
49. Java code needs to be compiled into __________ code before it can be executed.
Answer: bytecode
50. ____________ is used to find and fix bugs in the Java programs.
Answer: Java Debugger (JDB)
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