| Class | Description | 
|---|---|
| AbstractExpression | 
 Abstract base class for Expressions. 
 | 
| Add | 
 Final class that represents add arithmetic expression. 
 | 
| CompoundExpression | 
 Abstract base class for compound expression. 
 | 
| Concat | 
 Final class that represents a concat arithmetic expression. 
 | 
| Divide | 
 Final class that represents a divide arithmetic expression. 
 | 
| Multiply | 
 Final class that represents Multiply expression. 
 | 
| Negate | 
 Final class that represents negate expression. 
 | 
| Remainder | 
 Final class that represents subtract arithmetic expression. 
 | 
| Subtract | 
 Final class that represents subtract arithmetic expression. 
 | 
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