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Class calypso.util.SignedInteger

java.lang.Object
   |
   +----calypso.util.SignedInteger

Utility class that represents the parse state from parsing a signed integer. The sign of the integer is maintained so that "10" can be distinguished from "+10". In addition, we can optionally handle numbers expressed as percentages.

See Also: Integer.parseInt

public class  SignedInteger
     extends java.lang.Object
{
          // Fields 6
     public static final int MINUS;
     public static final int NONE;
     public static final int PLUS;
     protected boolean fPct;
     protected int fSign;
     protected int fValue;

          // Constructors 2
     public SignedInteger(int, int);
     public SignedInteger(String, boolean) throws NumberFormatException;

          // Methods 5
     public int computeValue(int);
     public int getSign();
     public int intValue();
     public boolean isPct();
     public String toString();
}

• PLUS

   public static final int PLUS

• MINUS

   public static final int MINUS

• NONE

   public static final int NONE

• fValue

   protected int fValue

• fSign

   protected int fSign

• fPct

   protected boolean fPct

• SignedInteger

   public SignedInteger(String aString, 
                        boolean aAllowPct)  throws NumberFormatException

The integer part works (almost) the same as atoi():

• Skip leading white spaces.
• Non-digit char terminates convertion.
• If got a valid integer, don't throw NumberFormatException.
• Throw exception if first nonspace char is not digit(atoi returns 0). Example: " +4z" works as 4.

• SignedInteger

   public SignedInteger(int aValue, 
                        int aSign) 

• intValue

   public int intValue() 

• isPct

   public boolean isPct() 

• computeValue

   public int computeValue(int aBaseValue) 

Compute a value based on "aBaseValue". Apply the sign of this SignedInteger to determine the value to return.

• getSign

   public int getSign() 

Return the sign of the value.

• toString

   public String toString() 

Overrides:

toString in class Object

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