Question: What Keyword Is Used To Class?

What does string [] args mean?

public static void mainString[] args in Java is an array of strings which stores arguments passed by command line while starting a program.

All the command line arguments are stored in that array.

Following example will clear your doubt: public class Test { public static void main(String[] args) {.

Is void a return type?

In lieu of a data type, void functions use the keyword “void.” A void function performs a task, and then control returns back to the caller–but, it does not return a value. You may or may not use the return statement, as there is no return value.

What is the keyword used for declaring a class variable or method?

Java static keywordshort: Java short keyword is used to declare a variable that can hold a 16-bit integer. static: Java static keyword is used to indicate that a variable or method is a class method. The static keyword in Java is used for memory management mainly.

Is null a keyword in Java?

In Java, null is a reserved word for literal values. It seems like a keyword, but actually, it is a literal similar to true and false.

Which is valid keyword in Java?

Which is a valid keyword in java? Explanation: interface is a valid keyword. Option B is wrong because although “String” is a class type in Java, “string” is not a keyword.

Is instance a keyword in Java?

Java instanceof is a keyword. It is a binary operator used to test if an object (instance) is a subtype of a given Type. It returns either true or false. … The instanceof keyword also known as type comparison operator because it compares the instance with type.

Is Boolean keyword in Java?

boolean is a keyword which designates the boolean primitive type. There are only two possible boolean values: true and false . The default value for boolean fields is false . The following is a declaration of a private boolean field named initialized , and its use in a method named synchronizeConnection .

What is the this keyword?

The this keyword refers to the current object in a method or constructor. The most common use of the this keyword is to eliminate the confusion between class attributes and parameters with the same name (because a class attribute is shadowed by a method or constructor parameter).

What is a keyword list some Java keywords?

Keywords or Reserved words are the words in a language that are used for some internal process or represent some predefined actions. … Java also contains a list of reserved words or keywords. These are: abstract -Specifies that a class or method will be implemented later, in a subclass.

Is void a keyword in Java?

The void keyword specifies that a method should not have a return value.

Is Main a keyword in Java?

main: It is the name of Java main method. It is the identifier that the JVM looks for as the starting point of the java program. It’s not a keyword. String[] args: It stores Java command line arguments and is an array of type java.