64 lines
2.1 KiB
Java
64 lines
2.1 KiB
Java
// housekeeping/Demotion.java
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// ©2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// Demotion of primitives and overloading.
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public class Demotion {
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void f1(char x) { System.out.println("f1(char)"); }
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void f1(byte x) { System.out.println("f1(byte)"); }
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void f1(short x) { System.out.println("f1(short)"); }
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void f1(int x) { System.out.println("f1(int)"); }
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void f1(long x) { System.out.println("f1(long)"); }
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void f1(float x) { System.out.println("f1(float)"); }
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void f1(double x) { System.out.println("f1(double)"); }
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void f2(char x) { System.out.println("f2(char)"); }
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void f2(byte x) { System.out.println("f2(byte)"); }
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void f2(short x) { System.out.println("f2(short)"); }
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void f2(int x) { System.out.println("f2(int)"); }
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void f2(long x) { System.out.println("f2(long)"); }
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void f2(float x) { System.out.println("f2(float)"); }
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void f3(char x) { System.out.println("f3(char)"); }
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void f3(byte x) { System.out.println("f3(byte)"); }
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void f3(short x) { System.out.println("f3(short)"); }
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void f3(int x) { System.out.println("f3(int)"); }
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void f3(long x) { System.out.println("f3(long)"); }
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void f4(char x) { System.out.println("f4(char)"); }
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void f4(byte x) { System.out.println("f4(byte)"); }
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void f4(short x) { System.out.println("f4(short)"); }
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void f4(int x) { System.out.println("f4(int)"); }
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void f5(char x) { System.out.println("f5(char)"); }
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void f5(byte x) { System.out.println("f5(byte)"); }
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void f5(short x) { System.out.println("f5(short)"); }
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void f6(char x) { System.out.println("f6(char)"); }
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void f6(byte x) { System.out.println("f6(byte)"); }
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void f7(char x) { System.out.println("f7(char)"); }
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void testDouble() {
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double x = 0;
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System.out.println("double argument:");
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f1(x);f2((float)x);f3((long)x);f4((int)x);
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f5((short)x);f6((byte)x);f7((char)x);
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}
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public static void main(String[] args) {
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Demotion p = new Demotion();
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p.testDouble();
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}
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}
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/* Output:
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double argument:
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f1(double)
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f2(float)
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f3(long)
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f4(int)
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f5(short)
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f6(byte)
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f7(char)
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*/
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