Literals : Primitive Data Type « Data Type « Java

Literals

     
//: c03:Literals.java
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

public class Literals {
  
  char c = 0xffff; // max char hex value
  
  byte b = 0x7f; // max byte hex value
  
  short s = 0x7fff; // max short hex value
  
  int i1 = 0x2f; // Hexadecimal (lowercase)
  
  int i2 = 0X2F; // Hexadecimal (uppercase)
  
  int i3 = 0177; // Octal (leading zero)
  
  // Hex and Oct also work with long.
  
  long n1 = 200L; // long suffix

  long n2 = 200l; // long suffix (but can be confusing)

  long n3 = 200;

  //! long l6(200); // not allowed

  float f1 = 1;

  float f2 = 1F; // float suffix

  float f3 = 1f; // float suffix

  float f4 = 1e-45f; // 10 to the power

  float f5 = 1e+9f; // float suffix

  double d1 = 1d; // double suffix

  double d2 = 1D; // double suffix

  double d3 = 47e47d; // 10 to the power
} ///:~

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5.	Arithmetic Demo
6.	Max Variable Length Demo
7.	Data Type Print Test
8.	Tests all the operators on all the primitive data types
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10.	Demonstrates the mathematical operators.
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12.	Built in types
13.	Shows default initial values
14.	Relational Demo
15.	Parse Number
16.	Java Type Helper
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18.	Convert primitive back and forth
19.	Returns a default value if the object passed is null
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21.	A mutable byte wrapper.
22.	A mutable double wrapper.
23.	A mutable float wrapper.
24.	A mutable int wrapper.
25.	A mutable long wrapper.
26.	A mutable short wrapper.
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