SubjectVariable (PMII - Principia Mathematica II)
Keywords: com.meyling.principia.logic.basic.SubjectVariable class

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## com.meyling.principia.logic.basic
Class SubjectVariable

    java.lang.Object
      com.meyling.principia.argument.AbstractArgument
          com.meyling.principia.argument.AbstractArgumentList
              com.meyling.principia.logic.basic.SubjectVariable

All Implemented Interfaces:
  Argument, SubjectVariableMarker

public class SubjectVariable
extends AbstractArgumentList
implements SubjectVariableMarker

Subject variable, represents a subject of the universe of discourse.

Version:
  $Revision: 1.6 $
Author:
  Michael Meyling

Constructor Summary
`SubjectVariable(Argument[] arguments)` Constructs certain subject variable.
`SubjectVariable(int number)` Constructs certain subject variable.

Method Summary
`Argument` | `create(Argument[] arguments)` Create a new Argument with given arguments.
`int` | `getNumber()` Get the number of the subject variable.
`String` | `toString()` Get the argument in `String` form.

Methods inherited from class com.meyling.principia.argument.AbstractArgumentList
`copy, getArgument, getArgumentSize`

Methods inherited from class com.meyling.principia.argument.AbstractArgument
`containsPatternVariables, equals, getHighestNumber, getPatternVariables, getReplacementParents, getSearchParents, hashCode, matches, matches, replace, replace, replace, replaceMatches`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Methods inherited from interface com.meyling.principia.argument.Argument
`containsPatternVariables, copy, equals, getArgument, getArgumentSize, getPatternVariables, getReplacementParents, getSearchParents, hashCode, matches, matches, replace, replace, replace, replaceMatches`

Constructor Detail

### SubjectVariable

    public SubjectVariable(Argument[] arguments)
                    throws ArgumentException

  Constructs certain subject variable.

Parameters:
  `arguments` - first argument is number of subject variable
Throws:
  `ArgumentException` - if there is not exactly one argument that is an instance of `CounterMarker`

### SubjectVariable

    public SubjectVariable(int number)
                    throws ArgumentException

  Constructs certain subject variable.

Parameters:
  `number` - number of subject variable
Throws:
  `ArgumentException` - if Counter couldn't be created

Method Detail

### getNumber

    public final int getNumber()

  Get the number of the subject variable.

  Specified by:
    `getNumber` in interface `SubjectVariableMarker`
  Returns:
    number of subject variable

### create

    public final Argument create(Argument[] arguments)
                          throws ArgumentException

  Description copied from interface: `Argument`
  Create a new Argument with given arguments.

  Specified by:
    `create` in interface `Argument`
  Specified by:
    `create` in class `AbstractArgumentList`
  Throws:
    `ArgumentException`

### toString

    public final String toString()

  Description copied from interface: `Argument`
  Get the argument in `String` form.

  Specified by:
    `toString` in interface `Argument`
  Specified by:
    `toString` in class `AbstractArgumentList`

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