📄 move.java
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//下棋
public class Move
{
public static final Move pass = new Move();
public int row;
public int col;
public Move(int r, int c)
{
if (row < 0 || row > 7 || col < 0 || col > 7)
throw new IllegalArgumentException(
"Invalid argments for new Move: (" + row + "," + col + ")");
row = r; col = c;
}
public String toString()
{
return "[row " + row + ", col " + col + "]";
}
private Move() { }
}
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