howto instatiate array of inner classes
Hi, I couldn't find the syntax for doing this.
I just want to instantiate an array of inner classes (non-static). It says '(' expected.
Here is a small sample:
public class test_inner {
public class inner1 {
}
public inner1 inner1_inst;
public class inner2 {
}
public inner2[] inner2_ar;
public static void foo() {
test_inner inst = new test_inner(); // OK
inst.inner1_inst = inst.new inner1(); // OK, single inst
inst.innter2_ar = inst.new inner2[10]; // fails to compile
// also tried [10]() even ()[10] ...
}
}
Using java 1.6 Win32.
As always grateful for any help.
I don't know why this doesn't work, but why isn't the outer class instantiating its own members? Very unusual.
public inner1 inner1_inst = new inner1();
public inner2[] inner2_ar = new inner2[10];
ejpa at 2007-7-12 22:16:40 >
The following compiles OK:public class test_inner {
public class inner1 {}
public inner1 inner1_inst;
public class inner2 {}
public inner2[] inner2_ar;
public static void foo() {
test_inner inst = new test_inner();
inst.inner1_inst = inst.new inner1();
inst.inner2_ar = new test_inner.inner2[10];
// inst.inner2_ar = inst.new inner2[10]; // fails to compile
// also tried [10]() even ()[10] ...
}
}
When creating inst.inner2_ar you don't use a qualified class instance creation expression (JLS 15.9) because what is being created is not an inner member class: it's an array. So the syntax for creating it is that of JLS 15.10.
