Исходный текст программы ReferenceType.java

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// =======================================
// ReferenceType.java
//
// (C) Alexandr Frolov, 1998
// E-mail: frolov@glasnet.ru
// Web:    http://www.glasnet.ru/~frolov
// =======================================

public class ReferenceType 
{
  public static void main(String args[]) 
  {  
    // ----------------------------------
    // Boolean
    // ----------------------------------
    System.out.println("* Boolean *\n");    
    
    Boolean fBooleanValue = 
      new Boolean(true);
    
    if(fBooleanValue.booleanValue())
    {
      System.out.println(
        "Set fBooleanValue to 'false'");    
      
      fBooleanValue = Boolean.FALSE;
      System.out.println("fBooleanValue = " +
        fBooleanValue);    
    }
    
    // ----------------------------------
    // Byte
    // ----------------------------------
    System.out.println("\n* Byte *\n");    

    Byte bByteValue = 
       new Byte(Byte.MAX_VALUE);
    System.out.println("bByteValue = " +
       bByteValue);    
    
    bByteValue = new Byte((byte)25);
    System.out.println("bByteValue = " +
      bByteValue.byteValue());    
    
    Byte add = new Byte((byte)26);
    System.out.println("bByteValue + add = " +
      bByteValue + add);    
    
    // ----------------------------------
    // Character
    // ----------------------------------
    System.out.println("\n* Character *\n");  
    
    Character chCharValue = 
      new Character('*');
    System.out.println("chCharValue = " +
      chCharValue);    
    
    char chv = chCharValue.charValue();
    System.out.println("chv = " + chv);    
    
    // ----------------------------------
    // Short
    // ----------------------------------
    System.out.println("\n* Short *\n");    
    
    Short shShortValue = 
     new Short(Short.MAX_VALUE);
    
    System.out.println("shShortValue = " +
     shShortValue);    
    
    shShortValue = new Short((short)2);
    System.out.println("shShortValue = " +
      shShortValue);    
    
    // ----------------------------------
    // Integer
    // ----------------------------------
    System.out.println("\n* Integer *\n");
    
    Integer iIntValue = 
     new Integer(2147483647);

    System.out.println("iIntValue = " + 
     iIntValue);    
    
    iIntValue = new Integer(2 + 
      iIntValue.intValue());
    System.out.println("iIntValue = " 
      + iIntValue);    
    
    // ----------------------------------
    // Long
    // ----------------------------------
    System.out.println("\n* Long *\n");    
    
    Long lLongValue = 
      new Long(Long.MAX_VALUE);
    
    System.out.println("lLongValue = " +
      lLongValue);    
    
    lLongValue = new Long(1234567890L);
    System.out.println("lLongValue = " +
      lLongValue);    
    
    // ----------------------------------
    // Float
    // ----------------------------------
    System.out.println("\n* Float *\n");    
    
    Float flFloatValue = new Float(526e-3F);
    System.out.println("flFloatValue = " +
      flFloatValue);    
    
    flFloatValue = 
      new Float(Float.MAX_VALUE);
    System.out.println("flFloatValue = " +
      flFloatValue);    

    flFloatValue = new Float(Float.NaN);
    System.out.println("flFloatValue = " +
      flFloatValue); 
    
    float zero = 0;
    float fl = -1/zero;
    System.out.println("fl = " + fl); 
    
    // ----------------------------------
    // Double
    // ----------------------------------
    System.out.println("\n* Double *\n");
    
    Double dblDoubleValue = 
      new Double(526E-3D);
    System.out.println("dblDoubleValue = " +
      dblDoubleValue);    
    
    dblDoubleValue = 
      new Double(Double.MAX_VALUE);
    System.out.println("dblDoubleValue = " +
      dblDoubleValue);    
  }
}

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