Java数据结构之栈的基本定义与实现方法示例

package com.java.stack;
/**
 * @描述 栈示例
 * @项目名称 Java_DataStruct
 * @包名 com.java.stack
 * @类名 MyStack
 * @author chenlin
 * @version 1.0
 */
public class CharStack {
 private int maxSize;// 站的大小
 private char[] arr;
 private int top;// 指向栈顶元素
 public CharStack(int size) {
  this.maxSize = size;
  this.arr = new char[maxSize];
  this.top = -1;
 }
 /**
  * 压入数据
  *
  * @param value
  */
 public void push(char value) {
   arr[++top] = value;
 }
 /**
  * 弹出数据
  *
  * @param value
  */
 public char pop() {
  return arr[top--];
 }
 /**
  * 访问数据
  *
  * @return
  */
 public long peek() {
  return arr[top];
 }
 /**
  * 判断是否为空
  *
  * @return
  */
 public boolean isEmpty() {
  return (top == -1);
 }
 /**
  * 是否满了
  *
  * @return
  */
 public boolean isFull() {
  return (top == maxSize - 1);
 }
 /**
  * 把字符串反序
  *
  * @param text
  * @return
  */
 public String reverse(String text) {
  for (int i = 0; i < text.length(); i++) {
   push(text.charAt(i));
  }
  String result = "";
  while (!isEmpty()) {
   result += (char)pop();
  }
  return result;
 }
 public static void main(String[] args) {
  CharStack stack = new CharStack(30);
  while (!stack.isFull()) {
   stack.push('l');
   stack.push('a');
   stack.push('k');
   stack.push('m');
   stack.push('n');
   stack.push('e');
   stack.push('b');
   stack.push('f');
   stack.push('d');
   stack.push('e');
  }
  System.out.println("脚本之家测试结果:");
  System.out.println("----------------------------弹出----------------------------");
  while (!stack.isEmpty()) {
   System.out.println(stack.pop());
  }
  System.out.println("----------------------------反序----------------------------");
  System.out.println(stack.reverse("abcdefg"));
 }
}