When running a method of a class I get a 'unexpected token: (' error message - class

Question

I am new to java and I am using processing. I am just learning to how use classes is java and I am getting confusing error messages when I run a method. the error message is 'unexpected token: (' the error as at the p.setPieces(pawn, white); line
here is my code:
int ranks = 8;
int files = 8;
int spacing;
// set the values for all the pieces and colors
int empty = 0;
int pawn = 1;
int knight = 2;
int bishop = 3;
int rook = 4;
int queen = 5;
int king = 6;
int white = 8;
int black = 16;
Piece p = new Piece();
p.setPiece(pawn, white);
void setup() {
size(600, 600);
spacing = width / ranks;
}
void draw() {
background(0);
// draw the board
for (int i = 0; i < ranks; i++) {
for (int j = 0; j < files; j++) {
if ((i + j) % 2 == 0) {
noStroke();
fill(255);
rect(i * spacing, j * spacing, spacing, spacing);
} else {
noStroke();
fill(0);
rect(i * spacing, j * spacing, spacing, spacing);
}
}
}
}
and then in a different file I have:
class Piece {
// make variables for color and type of a piece
int pieceType;
int pieceColor;
// set up type and color
void setPiece(int Type, int Color) {
pieceType = Type;
pieceColor = Color;
}
}

Answer 1

As khelwood and luk2302 mentioned, simply move p.setPiece(pawn, white); in setup() (preferably after size()):
int ranks = 8;
int files = 8;
int spacing;
// set the values for all the pieces and colors
int empty = 0;
int pawn = 1;
int knight = 2;
int bishop = 3;
int rook = 4;
int queen = 5;
int king = 6;
int white = 8;
int black = 16;
Piece p = new Piece();
void setup() {
size(600, 600);
spacing = width / ranks;
p.setPiece(pawn, white);
}
void draw() {
background(0);
// draw the board
for (int i = 0; i < ranks; i++) {
for (int j = 0; j < files; j++) {
if ((i + j) % 2 == 0) {
noStroke();
fill(255);
rect(i * spacing, j * spacing, spacing, spacing);
} else {
noStroke();
fill(0);
rect(i * spacing, j * spacing, spacing, spacing);
}
}
}
}
class Piece {
// make variables for color and type of a piece
int pieceType;
int pieceColor;
// set up type and color
void setPiece(int Type, int Color) {
pieceType = Type;
pieceColor = Color;
}
}
When using "active" mode (e.g. setup()/draw()) you can only declare variables (at the top), but not use them directly in the main block of code. You need to reference them within a function.