Java面试题及答案解析

Java1.Java

Java

Java

2.JDKJRE

(JRE)Javaapplet

JavaJRE(Java

3.(override)private量访Java于动绑定

态相

4.访staticJava

static没何

量5.支有动Java8byteshortfloatbooleancharJavadouble6.

(Overriding)(Overloading)1234

7.构构构在提认。Java中载方多构函。每个造数自。像C++自不。8.支持支多，Java多。9.

接请列个例可以List承接象区什别？抽。。苏格折猫布偶话„类。，它.所类不可同时生物非生)但是可以实现个口(吃饭口口。，接是明法的在不去它的

点，抽。static象。是final。是public以是

是。

程进区执进程线轻创喜三：Runnable池Runnable种更Thread应别

Java程使14.几执行(Running)(Waiting):(Sleeping)

on

(Dead)Java

synchronized

()(Monitor)

(deadlock)

NN又避

顺加出Java

集

集合类类

CollectionSetCollection顺collection并ap(key)(value)20.

21.

(cloning)

22.Iterator

Set

ListIteratorIterator

索等23.快速败fail-fast)安安全失败基于拷源上改影响java.util所速失败所安全失快速失败会抛常安失永抛样常

24.JavaHashMap

JavaHashMap

/索put()

HashMap引key会HashMap

(capacity)factor)resizing)equals()JavaHashMaphashCode()

HashtableHashMap

MapHashMap

HashMap

HashMapHashMap

(Enumeration)Hashtable27.(Array)(ArrayList)ArrayArray只大小ArrayList小动变化

LinkedList

LinkedList

它

O(n)ArrayListLinkedList

Comparator

JavacompareTo()0compare()compare()

comparator

comparatorcomparatortrue30.队级无界队照自顺建较器允许值自顺没何关较器线程安全队间O(log(n))31.O最

O基最

32.无间O(log

O(n)后间O(1)

ArrayList

(immutableaphashCode()长

Iterator

区别Enumeration速倍远远Enumeration他线够改在iterator历面象除里面说TreeSet区别HashSet度O(1)add()contains()度O(logn)回这JVM

被39.null(PermGen

41.序而大现要大概左右)足够了42.Java当当触及了超完发现GC

(Java8了了)43.Java(unchecked)

throws44.JavaExceptionError

Errorthrow

finally

完Exception对象变化finalize()protected回由javaappletjava

52.Applet

Java

Java

applet

义能

网

applet

appletjavaappletJava数

给条扩58.弹择单Choice)列以种能动动3andApplet

(BorderLayout)1

(clipping)69.(event-listener(event-adapter)实

实

来己GUI

71.Java管比

72.Java

)JDBCJDBCJAVA

JDBC

JDBCJDBCjava.sqlConnection,比势参备

可78.由

79.JavaJava

RMI

81.RMI

RMIand端RMI服引户引两JVMTCP/IP

(Remote

NamingStringbind()86.RMI

RMIstub

连88.垃(DGC)工DGCDGC垃

DGC90.

91.

动步92.什么？容HTMLHTTP93.说

javax.servlet.Servlet

实

？webHTTP

GenericServlet

ServletServletConfigServletHTTPServletHttpServlet96.ServletServletServletdoPost()

递体

递98.序

Web很多

WebWeb

器URLServlet99.包(Side含型Web

servlet

含WebservletServletServletServletRequest

Servlet

消什和cookie什Webcookie特Webcookiesession

cookiesession数面session和cookies储浏览什什

HTTPHTTP