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| Code Block | ||
|---|---|---|
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class OverloadedVarargs {
private static void doSomething(boolean... bool) {
System.out.print(""Number of arguments: "" + bool.length + "", Contents: "");
for (boolean b : bool)
System.out.print("[""[" + b + "]""]");
}
private static void doSomething(boolean bool1, boolean bool2) {
System.out.println(""Overloaded method invoked"");
}
public static void main(String[] args) {
doSomething(true, false);
}
}
|
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| Code Block | ||
|---|---|---|
| ||
class NotOverloadedVarargs {
private static void doSomething1(boolean... bool) {
System.out.print(""Number of arguments: "" + bool.length + "", Contents: "");
for (boolean b : bool)
System.out.print("[""[" + b + "]""]");
}
private static void doSomething2(boolean bool1, boolean bool2) {
System.out.println(""Overloaded method invoked"");
}
public static void main(String[] args) {
doSomething1(true, false);
}
}
|
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| Wiki Markup |
|---|
*EX1:* Sometimes, it is desirable to violate the ""do not overload varargs methods"" advice for performance reasons (avoiding the cost of creation of an array instance and its initialization on every invocation of a varargs method). \[[Bloch 08|AA. Java References#Bloch 08]\] |
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\[[Sun 06|AA. Java References#Sun 06]\] [varargs|http://java.sun.com/j2se/1.5.0/docs/guide/language/varargs.html] \[[Bloch 08|AA. Java References#Bloch 08]\] Item 42: ""Use varargs judiciously"" \[[Steinberg 05|AA. Java References#Steinberg 05]\] ""Using the Varargs Language Feature"" |
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DCL01-J. Use 'L', not 'l', to indicate a long value 03. Declarations and Initialization (DCL) DCL03-J. Use meaningful symbolic constants to represent literal values in program logic