Last active
August 29, 2015 14:18
-
-
Save S64/147679635709387b7022 to your computer and use it in GitHub Desktop.
ゼロ除算のテスト。
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
class DivisionByZero { | |
protected static final int[] NUMBERS = {8 , -8, 0}; | |
public static void main(String[] args) throws java.lang.Exception { | |
for (Mode m: Mode.values()) { | |
for (NumberMode nM : NumberMode.values()) { | |
try { | |
ExecCalc(m, nM); | |
} catch (Exception e) { | |
System.out.println(); | |
e.printStackTrace(System.out); | |
} finally { | |
System.out.println(); | |
} | |
} | |
} | |
} | |
protected static void ExecCalc(Mode mode, NumberMode nMode) { | |
int number; | |
switch(nMode) { | |
case Plus: | |
number = NUMBERS[0]; | |
break; | |
case Minus: | |
number = NUMBERS[1]; | |
break; | |
case Zero: | |
default: | |
number = NUMBERS[2]; | |
break; | |
} | |
switch (mode) { | |
case UseInteger: | |
ExecCalc(Integer.valueOf(number)); | |
break; | |
case UseDouble: | |
ExecCalc((double) number); | |
break; | |
case UseShort: | |
ExecCalc((short) number); | |
break; | |
case UseLong: | |
ExecCalc((long) number); | |
break; | |
case UseFloat: | |
ExecCalc((float) number); | |
break; | |
} | |
} | |
protected static void ExecCalc(int number) { | |
System.out.print("Integer: "+number+" / 0 = "); | |
System.out.println(number / 0); | |
} | |
protected static void ExecCalc(double number) { | |
System.out.print("Double: "+number+" / 0 = "); | |
System.out.println(number / 0); | |
} | |
protected static void ExecCalc(short number) { | |
System.out.print("Short: "+number+" / 0 = "); | |
System.out.println(number / 0); | |
} | |
protected static void ExecCalc(long number) { | |
System.out.print("Long: "+number+" / 0 = "); | |
System.out.println(number / 0); | |
} | |
protected static void ExecCalc(float number) { | |
System.out.print("Float: "+number+" / 0 = "); | |
System.out.println(number / 0); | |
} | |
protected static enum Mode { | |
UseInteger, | |
UseDouble, | |
UseShort, | |
UseLong, | |
UseFloat | |
} | |
protected static enum NumberMode { | |
Plus, | |
Minus, | |
Zero | |
} | |
} | |
/* | |
Integer: 8 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:55) | |
at DivisionByZero.ExecCalc(Main.java:36) | |
at DivisionByZero.main(Main.java:9) | |
Integer: -8 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:55) | |
at DivisionByZero.ExecCalc(Main.java:36) | |
at DivisionByZero.main(Main.java:9) | |
Integer: 0 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:55) | |
at DivisionByZero.ExecCalc(Main.java:36) | |
at DivisionByZero.main(Main.java:9) | |
Double: 8.0 / 0 = Infinity | |
Double: -8.0 / 0 = -Infinity | |
Double: 0.0 / 0 = NaN | |
Short: 8 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:65) | |
at DivisionByZero.ExecCalc(Main.java:42) | |
at DivisionByZero.main(Main.java:9) | |
Short: -8 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:65) | |
at DivisionByZero.ExecCalc(Main.java:42) | |
at DivisionByZero.main(Main.java:9) | |
Short: 0 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:65) | |
at DivisionByZero.ExecCalc(Main.java:42) | |
at DivisionByZero.main(Main.java:9) | |
Long: 8 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:70) | |
at DivisionByZero.ExecCalc(Main.java:45) | |
at DivisionByZero.main(Main.java:9) | |
Long: -8 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:70) | |
at DivisionByZero.ExecCalc(Main.java:45) | |
at DivisionByZero.main(Main.java:9) | |
Long: 0 / 0 = | |
java.lang.ArithmeticException: / by zero | |
at DivisionByZero.ExecCalc(Main.java:70) | |
at DivisionByZero.ExecCalc(Main.java:45) | |
at DivisionByZero.main(Main.java:9) | |
Float: 8.0 / 0 = Infinity | |
Float: -8.0 / 0 = -Infinity | |
Float: 0.0 / 0 = NaN | |
*/ |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment