This is an abstract class that is the superclass of Byte, Short, Integer, Long, Float, and Double. It defines the conversion functions those types implement.

Figure 10-47. java.lang.Number

public abstract class Number implements Serializable {
// Public Constructors
     public Number( );  
// Public Instance Methods
1.1  public byte byteValue( );  
     public abstract double doubleValue( );  
     public abstract float floatValue( );  
     public abstract int intValue( );  
     public abstract long longValue( );  
1.1  public short shortValue( );  
}

Subclasses

Byte, Double, Float, Integer, Long, Short, java.math.BigDecimal, java.math.BigInteger, java.util.concurrent.atomic.AtomicInteger, java.util.concurrent.atomic.AtomicLong

Returned By

java.text.ChoiceFormat.parse( ), java.text.DecimalFormat.parse( ), java.text.NumberFormat.parse( ), javax.xml.datatype.Duration.getField( )