ICSE JAVA

Java was designed by _________________.

• Microsoft

• Mozilla Corporation

• Sun Microsystems

• Amazon Inc.

Answer explanation

Java was designed by Sun Microsystems, a company known for its contributions to software and hardware technologies. The other options, such as Microsoft and Amazon, are not associated with the creation of Java.

Earlier name of Java Programming language was -

• Eclipse

• OAK

• Netbean

• C

Answer explanation

The earlier name of the Java programming language was OAK. It was developed by James Gosling and his team at Sun Microsystems before being renamed to Java.

Which kind of language java is ?

• Object Oriented

• Procedural

• Event Driven

• None of these

Answer explanation

Java is primarily an Object Oriented language, which means it is based on the concepts of objects and classes. This allows for better organization and modularity in programming, distinguishing it from procedural and event-driven languages.

Which of the following are correct advantage of java?

• Java is Simple

• Java is Secure

• Java is Portable

• All of the above

Answer explanation

Java is known for its simplicity, security, and portability. These features make it a versatile and widely-used programming language, thus the correct answer is 'All of the above'.

Default, public , protected, private are?

• Access Modifier

• Non-access Modifiers

• Both A and B

• It's variable

Answer explanation

Default, public, protected, and private are types of access modifiers in programming that control the visibility of class members. Therefore, the correct answer is 'Access Modifier'.

Single line comment starts with _________ in Java.

• /**

• //

• /*

• None of these

Answer explanation

In Java, a single line comment starts with '//' which indicates that everything following it on that line is a comment. The other options, '/*' and '/**', are used for multi-line comments and documentation comments, respectively.

Java is case sensitive?

• True

• False

• Depends On Compiler

• May be true or false

Answer explanation

Java is case sensitive, meaning that it distinguishes between uppercase and lowercase letters. For example, 'Variable' and 'variable' would be considered different identifiers. Therefore, the correct answer is True.

What is true in Java?

• For all class names the first letter should be in Upper Case

• All method names should start with a Lower Case letter.

• Name of the program file should exactly match the class name.

• All of the above

Answer explanation

In Java, class names conventionally start with an uppercase letter, method names with a lowercase letter, and the program file name must match the class name exactly. Therefore, 'All of the above' is the correct answer.

All Java components require names. Names used for classes, variables, and methods are called?

• Variables

• identifiers

• Access Modifiers

• Java Modifiers

Answer explanation

In Java, names for classes, variables, and methods are referred to as identifiers. They are essential for distinguishing different elements in the code, making 'identifiers' the correct choice among the options provided.

Which of the following is smallest integer data type ?

• int

• byte

• short

• long

Answer explanation

The smallest integer data type among the options is 'byte', which typically holds values from 0 to 255. In contrast, 'int', 'short', and 'long' can store larger ranges of integers.