ThomsonTang

package com.thomson.jcip.ch5.building;

import java.util.Vector;

/**
 * 验证同步集合类存在的问题：在同步集合类上执行复合操作有可能出现问题
 *
 * comes from the chapter5 of JCIP
 *
 * 同步集合类本身是线程安全的，所以将对象的状态委托给这些同步集合类来管理，就能保证线程安全性。但是还存在一种例外，如果在同一个集合类上执行复合操作，那么就会产生一些不符合预期的问题。

ThomsonTang

/**
 * change the value of a specified query string in a url.
 */
def updateUrlParameterValWithRegex(url, paraName, paraVal) {
    assert url
    def (path, paras) = url.tokenize('?')
    println "the original url parameters:\n ${paras}"
    def updatedUrl = paras.replaceFirst(/${paraName}=\w*/, "${paraName}=${paraVal}")
    println "the updated url parameters:\n ${updatedUrl}"
    "${path}${updatedUrl}"

ThomsonTang

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

ThomsonTang

package datastructure.stackqueue;

interface Stack {
    void push(Object obj);
    Object pop();
    boolean isEmpty();
}

class ArrayStack implements Stack {
    private Object[] theArray;