java实现链栈在前面有所介绍:http://www.cnblogs.com/lixiaolun/p/4644141.html
java实现链栈的代码:
package stackapplication; public class LinkStack { private Element base; private Element top; class Element { public Step data; public Element next; } /** * 初始化栈 * */ public void initStack() { top = new Element(); base = new Element(); top.data=null; top.next=base; base.data=null; base.next=null; } /** * 入栈 * */ public void push(Step o) { Element e = new Element(); e.data = o; if(top.next==base)//第一次入栈操作 { e.next=base; top.next=e; }else { e.next=top.next; top.next=e; } } /** * 出栈 * */ public Step pop() { Step o = null; if(top.next==base) { System.out.println("栈中没有元素!"); return o; }else { o = top.next.data; //System.out.println("出栈操作"+o); top.next=top.next.next; } return o; } /** * 判断栈是否为空 * */ public Boolean isEmpty() { if(top.next==base) { return true; } return false; } /** * 打印栈 * */ public void print() { System.out.print("打印栈:"); Element temp =top; while(temp.next!=base) { System.out.print(temp.next.data+"\t"); temp =temp.next; } System.out.println(); } }
java实现迷宫求解的类代码:
package stackapplication; public class Maze { public static void main(String[] args) { int [][]map={ {1,1,1,1,1,1,1,1,1,1}, {1,0,0,1,0,0,0,1,0,1}, {1,0,0,1,0,0,0,1,0,1}, {1,0,0,0,0,1,1,0,0,1}, {1,0,1,1,1,0,0,0,0,1}, {1,0,0,0,1,0,0,0,0,1}, {1,0,1,0,0,0,1,0,0,1}, {1,0,1,1,1,0,1,1,0,1}, {1,1,0,0,0,0,0,0,0,1}, {1,1,1,1,1,1,1,1,1,1} };//入口在map[1][1],出口在map[8][8] int [][]move={{0,-1},{0,1},{-1,0},{1,0}};//上下左右四个移动方向 LinkStack s = new LinkStack(); s.initStack(); LinkStack s1 = new LinkStack(); s1.initStack(); path(map,move,s,s1); while(!s1.isEmpty()) { Step step = s1.pop(); System.out.println("("+step.x+","+step.y+")"); } } private static int path(int[][] map, int[][] move,LinkStack s,LinkStack s1) { Step step = new Step(1, 1, -1);//起始位置 //map[1][1]=-1;//表示已走过该点 s.push(step); s1.push(step); while(!s.isEmpty()) { step=s.pop(); int x=step.x; int y=step.y; int d=step.d+1; while(d<4) { int i=x+move[d][0]; int j=y+move[d][1]; if(map[i][j]==0 && i>=0 && i<10 && j>=0 &&j<10)//该位置是通的,且不越界 { System.out.println(i+","+j); step = new Step(x, y, d); s.push(step);//将当前位置压入栈顶 s1.push(step); step = new Step(i, j, d); s.push(step);//将当前位置压入栈顶 s1.push(step); x=i; y=j; map[x][y]=-1;//表示已走过该点 if(x==8 && y==8)//到达出口 { System.out.println("到达出口"); return 1; }else { d=0;//到达一个新的点,所以要从新初始化方向,遍历其4个方向是否是通的 } }else { d++;//下一个方向 } } } return 0; } } class Step { int x;//横坐标 int y;//纵坐标 int d;//移动方向,取值为0,1,2,3。分别表示上下左右4个方向。 public Step(int x,int y,int d) { this.x=x; this.y=y; this.d=d; } }