如何修复java.lang.outofmemoryerror异常？

Question

好的，所以我正在尝试制作一个国际象棋游戏，主要是基于终端的游戏。我首先尝试编码可能的动作，例如Rook，Queen，您知道国际象棋是如何工作的。

但是，每次我尝试以主教，菜单和女王的可能动作获取列表时，这个Java.lang.outofmemoryerror都会出现。我使用了很多语句来创建此可能的动作列表，但是它似乎并不是一个非常复杂的代码，以至于应用程序缺乏内存，因此我只会在此处删除代码，看看是否有人可以帮助我优化它或做某事以防止对角线

移动

        possibleCol = col + 1;
        for (int i = row + 1; i < this.getBoard().getRows(); i++){
            if (this.getBoard().checkCoordinate(i, possibleCol)){
                pieceAt = this.getBoard().getPieceAt(i, possibleCol);
                location = new Location(i, possibleCol);
                if (pieceAt == null){
                    possibleMoves.add(location);
                }
                else if (pieceAt != null){
                    possibleKills.add(location);
                }
            }
            possibleCol++;
        }

        possibleCol = col + 1;
        for (int i = row - 1; i < this.getBoard().getRows(); i--){
            if (this.getBoard().checkCoordinate(i, possibleCol)){
                pieceAt = this.getBoard().getPieceAt(i, possibleCol);
                location = new Location(i, possibleCol);
                if (pieceAt == null){
                    possibleMoves.add(location);
                }
                else if (pieceAt != null){
                    possibleKills.add(location);
                }
            }
            possibleCol++;
        }

        possibleCol = col - 1;
        for (int i = row + 1; i < this.getBoard().getRows(); i++){
            if (this.getBoard().checkCoordinate(i, possibleCol)){
                pieceAt = this.getBoard().getPieceAt(i, possibleCol);
                location = new Location(i, possibleCol);
                if (pieceAt == null){
                    possibleMoves.add(location);
                }
                else if (pieceAt != null){
                    possibleKills.add(location);
                }
            }
            possibleCol--;
        }

        possibleCol = col - 1;
        for (int i = row - 1; i < this.getBoard().getRows(); i--){
            if (this.getBoard().checkCoordinate(i, possibleCol)){
                pieceAt = this.getBoard().getPieceAt(i, possibleCol);
                location = new Location(i, possibleCol);
                if (pieceAt == null){
                    possibleMoves.add(location);
                }
                else if (pieceAt != null){
                    possibleKills.add(location);
                }
            }
            possibleCol--;
        }

rok移动

        for (int i = possibleRow; i < this.getBoard().getRows(); i++){
            Piece pieceAt = this.getBoard().getPieceAt(i, col);
            Location location = new Location(i, col);
            if (pieceAt == null){
                possibleMoves.add(location);
            }
            else if (pieceAt != null){
                possibleKills.add(location);
                break;
            }
        }

        possibleRow = row - 1;
        for (int i = possibleRow; i >= 0; i--){
            Piece pieceAt = this.getBoard().getPieceAt(i, col);
            Location location = new Location(i, col);
            if (pieceAt == null){
                possibleMoves.add(location);
            }
            else if (pieceAt != null){
                possibleKills.add(location);
                break;
            }
        }

        int possibleCol = col + 1;
        for (int i = possibleCol; i < this.getBoard().getColumns(); i++){
            Piece pieceAt = this.getBoard().getPieceAt(row, i);
            Location location = new Location(row, i);
            if (pieceAt == null){
                possibleMoves.add(location);
            }
            else if (pieceAt != null){
                possibleKills.add(location);
                break;
            }
        }

        possibleCol = col - 1;
        for (int i = possibleCol; i < this.getBoard().getColumns(); i--){
            Piece pieceAt = this.getBoard().getPieceAt(row, i);
            Location location = new Location(row, i);
            if (pieceAt == null){
                possibleMoves.add(location);
            }
            else if (pieceAt != null){
                possibleKills.add(location);
                break;
            }
        }

Answer 1

考虑何时停止此循环。

for (int i = possibleCol; i < this.getBoard().getColumns(); i--){

将终端条件与前循环中的条件进行比较：

for (int i = possibleRow; i >= 0; i--){