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NewVarArgs.java
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30 lines (29 loc) · 861 Bytes
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// housekeeping/NewVarArgs.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// Using array syntax to create variable argument lists
public class NewVarArgs {
static void printArray(Object... args) {
for(Object obj : args)
System.out.print(obj + " ");
System.out.println();
}
public static void main(String[] args) {
// Can take individual elements:
printArray(47, (float) 3.14, 11.11);
printArray(47, 3.14F, 11.11);
printArray("one", "two", "three");
printArray(new A(), new A(), new A());
// Or an array:
printArray((Object[])new Integer[]{ 1, 2, 3, 4 });
printArray(); // Empty list is OK
}
}
/* Output:
47 3.14 11.11
47 3.14 11.11
one two three
A@19e0bfd A@139a55 A@1db9742
1 2 3 4
*/