Demotion of primitives and overloading


// : c04:Demotion.java
// Demotion of primitives and overloading.
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

public class Demotion {
  void f1(char x) {
    System.out.println("f1(char)");
  }

  void f1(byte x) {
    System.out.println("f1(byte)");
  }

  void f1(short x) {
    System.out.println("f1(short)");
  }

  void f1(int x) {
    System.out.println("f1(int)");
  }

  void f1(long x) {
    System.out.println("f1(long)");
  }

  void f1(float x) {
    System.out.println("f1(float)");
  }

  void f1(double x) {
    System.out.println("f1(double)");
  }

  void f2(char x) {
    System.out.println("f2(char)");
  }

  void f2(byte x) {
    System.out.println("f2(byte)");
  }

  void f2(short x) {
    System.out.println("f2(short)");
  }

  void f2(int x) {
    System.out.println("f2(int)");
  }

  void f2(long x) {
    System.out.println("f2(long)");
  }

  void f2(float x) {
    System.out.println("f2(float)");
  }

  void f3(char x) {
    System.out.println("f3(char)");
  }

  void f3(byte x) {
    System.out.println("f3(byte)");
  }

  void f3(short x) {
    System.out.println("f3(short)");
  }

  void f3(int x) {
    System.out.println("f3(int)");
  }

  void f3(long x) {
    System.out.println("f3(long)");
  }

  void f4(char x) {
    System.out.println("f4(char)");
  }

  void f4(byte x) {
    System.out.println("f4(byte)");
  }

  void f4(short x) {
    System.out.println("f4(short)");
  }

  void f4(int x) {
    System.out.println("f4(int)");
  }

  void f5(char x) {
    System.out.println("f5(char)");
  }

  void f5(byte x) {
    System.out.println("f5(byte)");
  }

  void f5(short x) {
    System.out.println("f5(short)");
  }

  void f6(char x) {
    System.out.println("f6(char)");
  }

  void f6(byte x) {
    System.out.println("f6(byte)");
  }

  void f7(char x) {
    System.out.println("f7(char)");
  }

  void testDouble() {
    double x = 0;
    System.out.println("double argument:");
    f1(x);
    f2((float) x);
    f3((long) x);
    f4((int) x);
    f5((short) x);
    f6((byte) x);
    f7((char) x);
  }

  public static void main(String[] args) {
    Demotion p = new Demotion();
    p.testDouble();
  }
} ///:~

Related examples in the same category

1.	Demonstration of both constructor and ordinary method overloading
2.	Overloaded constructor
3.	Overloaded method
4.	Demonstration of overriding fields
5.	Overloading based on the order of the arguments
6.	Promotion of primitives and overloading
7.	Overloading a base-class method name in a derived class does not hide the base-class versions

Demotion of primitives and overloading : Overloading « Class « Java

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