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Given the declaration
interface IntHolder { int getInt(); }
which of the following methods are valid?
//----(1)----
IntHolder makeIntHolder(int i) {
return new IntHolder() {
public int getInt() { return i; }
};
}
//----(2)----
IntHolder makeIntHolder(final int i) {
return new IntHolder {
public int getInt() { return i; }
};
}
//----(3)----
IntHolder makeIntHolder(int i) {
class MyIH implements IntHolder {
public int getInt() { return i; }
}
return new MyIH();
}
//----(4)----
IntHolder makeIntHolder(final int i) {
class MyIH implements IntHolder {
public int getInt() { return i; }
}
return new MyIH();
}
//----(5)----
IntHolder makeIntHolder(int i) {
return new MyIH(i);
}
static class MyIH implements IntHolder {
final int j;
MyIH(int i) { j = i; }
public int getInt() { return j; }
}
Select the two correct answers.
The method labeled (1). The method labeled (2). The method labeled (3). The method labeled (4). The method labeled (5).
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