Number Of Keywords In Java

Here is a list of keywords in the java programming language.

Number of keywords in java. Each keyword has a specific meaning in the language. It can hold true and false values only. You cannot use any of the following as identifiers in your programs. List of all java keywords keywords or reserved words are the words in a language that are used for some internal process or represent some predefined actions.

The java programming language has 50 keywords. These words are therefore not allowed to use as a variable names or objects. Because of this programmers cannot use keywords as names for variables methods classes or as any other identifier. As of java 1 5 there is 50 keywords enum is added to java 1 4 keywords in addition to the keywords java reserves the following.

Due to their special functions in the language most integrated development environments for java use syntax highlighting to display keywords in a different colour for easy identification. Abstract class can provide the implementation of. You can t use a keyword for anything other than its pre assigned meaning. You cannot use them as identifiers in your programs.

True false and null. As of java 1 4 there is 49 keywords. In the java programming language a keyword is any one of 55 reserved words that have a predefined meaning in the language. Java abstract keyword is used to declare abstract class.

A list of java keywords or reserved words are given below. Of these 51 keywords 49 are in use and 2 are not in use. The keywords const and goto are reserved even though they are not currently used true false and null might seem like keywords but they are actually literals.