Java Reference
In-Depth Information
// ok - assignment
int y = x + 1;
// error - read before declaration
int v = x = 3;
// ok - x at left hand side of assignment
int z = UseBeforeDeclaration.x * 2;
// ok - not accessed via simple name
Object o = new Object() {
void foo() { x++; }
// ok - occurs in a different class
{ x++; }
// ok - occurs in a different class
};
}
{
j = 200;
// ok - assignment
j = j + 1;
// error - right hand side reads before declaration
int k = j = j + 1;
// error - illegal forward reference to j
int n = j = 300;
// ok - j at left hand side of assignment
int h = j++;
// error - read before declaration
int l = this.j * 3;
// ok - not accessed via simple name
Object o = new Object() {
void foo(){ j++; }
// ok - occurs in a different class
{ j = j + 1; }
// ok - occurs in a different class
};
}
int w = x = 3;
// ok - x at left hand side of assignment
int p = x;
// ok - instance initializers may access static fields
static int u =
(new Object() { int bar() { return x; } }).bar();
// ok - occurs in a different class
static int x;
int m = j = 4;
// ok - j at left hand side of assignment
int o =
(new Object() { int bar() { return j; } }).bar();
