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java.lang.Objectjava.util.Observable
BruchAddiererModel
public class BruchAddiererModel
Addierer fuer gemeine Brueche, MVC-Model.
Field Summary | |
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private Bruch |
ergebnis
Ergebnisbruch. |
private Bruch |
operand
Bruchoperand. |
Constructor Summary | |
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BruchAddiererModel()
Konstruktor, setzt Startwerte auf 0/1. |
Method Summary | |
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void |
add()
Addition, Bruch = Bruch + Operand. |
void |
reset()
Startzustand, loeschen von Bruch und Operand. |
void |
setOperandNenner(int n)
Setzen eines neuen Operandennenner. |
void |
setOperandZaehler(int z)
Setzen eines neuen Operandenzaehler. |
java.lang.String |
toString()
Darstellung des Ergebnisbruchs. |
Methods inherited from class java.util.Observable |
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addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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private Bruch ergebnis
private Bruch operand
Constructor Detail |
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public BruchAddiererModel()
Method Detail |
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public void setOperandNenner(int n) throws java.lang.Exception
n
- Nenner
BruchException
java.lang.Exception
public void setOperandZaehler(int z)
z
- Zaehlerpublic void reset()
public void add() throws java.lang.Exception
BruchException,
- NPlusException
java.lang.Exception
public java.lang.String toString()
toString
in class java.lang.Object
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