2015-09-07 11:44:36 -06:00
|
|
|
// housekeeping/PrimitiveOverloading.java
|
2015-12-15 11:47:04 -08:00
|
|
|
// (c)2016 MindView LLC: see Copyright.txt
|
2015-11-15 15:51:35 -08:00
|
|
|
// We make no guarantees that this code is fit for any purpose.
|
|
|
|
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
|
2016-01-25 18:05:55 -08:00
|
|
|
// Promotion of primitives and overloading
|
2015-06-15 17:47:35 -07:00
|
|
|
|
|
|
|
public class PrimitiveOverloading {
|
2015-11-03 12:00:44 -08:00
|
|
|
void f1(char x) { System.out.print("f1(char) "); }
|
|
|
|
void f1(byte x) { System.out.print("f1(byte) "); }
|
|
|
|
void f1(short x) { System.out.print("f1(short) "); }
|
|
|
|
void f1(int x) { System.out.print("f1(int) "); }
|
|
|
|
void f1(long x) { System.out.print("f1(long) "); }
|
|
|
|
void f1(float x) { System.out.print("f1(float) "); }
|
|
|
|
void f1(double x) { System.out.print("f1(double) "); }
|
2015-06-15 17:47:35 -07:00
|
|
|
|
2015-11-03 12:00:44 -08:00
|
|
|
void f2(byte x) { System.out.print("f2(byte) "); }
|
|
|
|
void f2(short x) { System.out.print("f2(short) "); }
|
|
|
|
void f2(int x) { System.out.print("f2(int) "); }
|
|
|
|
void f2(long x) { System.out.print("f2(long) "); }
|
|
|
|
void f2(float x) { System.out.print("f2(float) "); }
|
|
|
|
void f2(double x) { System.out.print("f2(double) "); }
|
2015-06-15 17:47:35 -07:00
|
|
|
|
2015-11-03 12:00:44 -08:00
|
|
|
void f3(short x) { System.out.print("f3(short) "); }
|
|
|
|
void f3(int x) { System.out.print("f3(int) "); }
|
|
|
|
void f3(long x) { System.out.print("f3(long) "); }
|
|
|
|
void f3(float x) { System.out.print("f3(float) "); }
|
|
|
|
void f3(double x) { System.out.print("f3(double) "); }
|
2015-06-15 17:47:35 -07:00
|
|
|
|
2015-11-03 12:00:44 -08:00
|
|
|
void f4(int x) { System.out.print("f4(int) "); }
|
|
|
|
void f4(long x) { System.out.print("f4(long) "); }
|
|
|
|
void f4(float x) { System.out.print("f4(float) "); }
|
|
|
|
void f4(double x) { System.out.print("f4(double) "); }
|
2015-06-15 17:47:35 -07:00
|
|
|
|
2015-11-03 12:00:44 -08:00
|
|
|
void f5(long x) { System.out.print("f5(long) "); }
|
|
|
|
void f5(float x) { System.out.print("f5(float) "); }
|
|
|
|
void f5(double x) { System.out.print("f5(double) "); }
|
2015-06-15 17:47:35 -07:00
|
|
|
|
2015-11-03 12:00:44 -08:00
|
|
|
void f6(float x) { System.out.print("f6(float) "); }
|
|
|
|
void f6(double x) { System.out.print("f6(double) "); }
|
2015-06-15 17:47:35 -07:00
|
|
|
|
2015-11-03 12:00:44 -08:00
|
|
|
void f7(double x) { System.out.print("f7(double) "); }
|
2015-06-15 17:47:35 -07:00
|
|
|
|
|
|
|
void testConstVal() {
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("5: ");
|
|
|
|
f1(5);f2(5);f3(5);f4(5);f5(5);f6(5);f7(5);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
void testChar() {
|
|
|
|
char x = 'x';
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("char: ");
|
|
|
|
f1(x);f2(x);f3(x);f4(x);f5(x);f6(x);f7(x);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
void testByte() {
|
|
|
|
byte x = 0;
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("byte: ");
|
|
|
|
f1(x);f2(x);f3(x);f4(x);f5(x);f6(x);f7(x);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
void testShort() {
|
|
|
|
short x = 0;
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("short: ");
|
|
|
|
f1(x);f2(x);f3(x);f4(x);f5(x);f6(x);f7(x);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
void testInt() {
|
|
|
|
int x = 0;
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("int: ");
|
|
|
|
f1(x);f2(x);f3(x);f4(x);f5(x);f6(x);f7(x);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
void testLong() {
|
|
|
|
long x = 0;
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("long: ");
|
|
|
|
f1(x);f2(x);f3(x);f4(x);f5(x);f6(x);f7(x);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
void testFloat() {
|
|
|
|
float x = 0;
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("float: ");
|
|
|
|
f1(x);f2(x);f3(x);f4(x);f5(x);f6(x);f7(x);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
void testDouble() {
|
|
|
|
double x = 0;
|
2015-11-03 12:00:44 -08:00
|
|
|
System.out.print("double: ");
|
|
|
|
f1(x);f2(x);f3(x);f4(x);f5(x);f6(x);f7(x);
|
|
|
|
System.out.println();
|
2015-06-15 17:47:35 -07:00
|
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
|
|
PrimitiveOverloading p =
|
|
|
|
new PrimitiveOverloading();
|
|
|
|
p.testConstVal();
|
|
|
|
p.testChar();
|
|
|
|
p.testByte();
|
|
|
|
p.testShort();
|
|
|
|
p.testInt();
|
|
|
|
p.testLong();
|
|
|
|
p.testFloat();
|
|
|
|
p.testDouble();
|
|
|
|
}
|
2015-09-07 11:44:36 -06:00
|
|
|
}
|
|
|
|
/* Output:
|
2015-06-15 17:47:35 -07:00
|
|
|
5: f1(int) f2(int) f3(int) f4(int) f5(long) f6(float)
|
|
|
|
f7(double)
|
|
|
|
char: f1(char) f2(int) f3(int) f4(int) f5(long) f6(float)
|
|
|
|
f7(double)
|
|
|
|
byte: f1(byte) f2(byte) f3(short) f4(int) f5(long)
|
|
|
|
f6(float) f7(double)
|
|
|
|
short: f1(short) f2(short) f3(short) f4(int) f5(long)
|
|
|
|
f6(float) f7(double)
|
|
|
|
int: f1(int) f2(int) f3(int) f4(int) f5(long) f6(float)
|
|
|
|
f7(double)
|
|
|
|
long: f1(long) f2(long) f3(long) f4(long) f5(long)
|
|
|
|
f6(float) f7(double)
|
|
|
|
float: f1(float) f2(float) f3(float) f4(float) f5(float)
|
|
|
|
f6(float) f7(double)
|
|
|
|
double: f1(double) f2(double) f3(double) f4(double)
|
|
|
|
f5(double) f6(double) f7(double)
|
2015-09-07 11:44:36 -06:00
|
|
|
*/
|