Interpreter Design Pattern in Java

By | July 8, 2020

In this post, We will talk and learn about the Interpreter Design Pattern in Java.

Key Points About Interpreter Design Pattern :

  • Interpreter design pattern falls under behavioral design pattern.
  • This pattern is mainly used to define a grammatical representation for a language and provides an interpreter to deal with this grammar.
  • One of the best examples of an interpreter design pattern is a java compiler that interprets the java source code into byte code that is understandable by any JVM. Google Translator is also a good example of an interpreter pattern where the input can be in any language and we can get the output interpreted in another language.

Interpreter Design Pattern in JDK:

Now Let’s move towards the implementation of the Interpreter Design Pattern.

Below is the complete source code:

Interpreter Design Pattern

Expression.java

 

AdditionExpression.java

 

SubtractionExpression.java

 

InterpreterEngine.java

 

InterpreterClient.java

 

InterpreterTest.java

Output of this Program:

add 300 and 75
Addition of both Number is = 375
———————————————————————————
subtract 40 from 100
Subtraction of number is = 60

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That’s all about the Interpreter Design Pattern in Java.
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