我试图在 java 中测试一个程序，我得到一个数组索引越界异常，我认为不应该抛出该异常。看看这段代码，告诉我我是否遗漏了什么？eclipse 告诉我错误被抛出在我添加评论以显示它的位置
class maze{
private int cols; // number of columns in maze
private int rows; // number of rows in maze
private String name;
private weightedGraph<Integer> graph;
private dijkstra solution;
public char[][] mazeStore;
public maze(String filename){
try{
FileReader r = new FileReader(filename);
Scanner s = new Scanner(r);
this.rows = s.nextInt();
this.cols = s.nextInt();
this.name = filename;
this.mazeStore = new char[(2*rows)+1][(2*cols)+1];
String line = s.nextLine();
for(int k = 0; k < ((2*rows)+1); k++){
char[] temp = line.toCharArray();
for(int i = 0; i < temp.length; i++){
mazeStore[k][i] = temp[i];
line = s.nextLine();
}
}
graph = new weightedGraph<Integer>(rows*cols);
for(int y = 1; y < 2*rows; y++){
for(int x = 1; x < 2*cols; x++){
if((x % 2 == 1) && (y % 2 == 0)){
if(mazeStore[x][y] != '-'){ // <<<<<<<<<<<<<<THIS IS WHERE THE ERROR IS THROWN
int label = (x - 1) + (x / 2);
graph.addEdge(label, label+cols, 1);
graph.addEdge(label+cols, label, 1);
}
}
if((x % 2 == 0) && (y % 2 == 1)){
if(mazeStore[x][y] != '|'){
int label = ((x - 1) + (x / 2)) + (y / 2);
graph.addEdge(label, label+1, 1);
graph.addEdge(label+1, label, 1);
}
}
}
}
this.solution = new dijkstra(graph, 0);
}
catch(FileNotFoundException e){
System.err.println("FileNotFoundException: " + e.getMessage());
}