In Java, it is completely legal to initialize a String array in the following way:
String[] s = {"FOO", "BAR"};
However, when trying to instantiate a class that takes a String array as a parameter, the following piece of code is NOT allowed:
Test t = new Test({"test"});
But this works again:
Test t = new Test(new String[] {"test"});
Can someone explain why this is?
String[] s = {"FOO", "BAR"};
this is allowed at declaration time only
You can't
String[] s;
s={"FOO", "BAR"};
Because Type[] x = { ... } is an initialization syntax for arrays. The { ... } is interpreted in a specific way only in that specific context.
For you want a simple way to pass a String array, I suggest you use varargs
class Test {
public Test(String...args);
}
// same as new Test(new String[] { "test", "one" })
Test t = new Test("test", "one");
