帝国软件
  设为首页 加入收藏 关于我们
 
解密帝国网站管理系统
栏 目:
 
您的位置:首页 > 技术文档 > JAVA编程
scjp1.4将于八月十九开始上马
作者:未知 发布时间:2005-05-12 来源:JSP天空网
Sun Certified Programmer for the Java 2 Platform 1.4 (310-035) - Exam will be available in August 19, 2002.

Objectives are available (The new exam version does not include I/O or AWT).

SUN CERTIFIED PROGRAMMER FOR JAVA[tm] 2 PLATFORM 1.4
Exam Available August 19, 2002
SECTION 1: DECLARATIONS AND ACCESS CONTROL

Write code that declares, constructs and initializes arrays of any base type using any of the permitted forms both for declaration and for initialization.
Declare classes, nested classes, methods, instance variables, static variables and automatic (method local) variables making appropriate use of all permitted modifiers (such as public, final, static, abstract, etc.). State the significance of each of these modifiers both singly and in combination and state the effect of package relationships on declared items qualified by these modifiers.
For a given class, determine if a default constructor will be created and if so state the prototype of that constructor.
Identify legal return types for any method given the declarations of all related methods in this or parent classes.
SECTION 2: FLOW CONTROL, ASSERTIONS, AND EXCEPTION HANDLING

Write code using if and switch statements and identify legal argument types for these statements.
Write code using all forms of loops including labeled and unlabeled, use of break and continue, and state the values taken by loop counter variables during and after loop execution.
Write code that makes proper use of exceptions and exception handling clauses (try, catch, finally) and declares methods and overriding methods that throw exceptions.
Recognize the effect of an exception arising at a specified point in a code fragment. Note: The exception may be a runtime exception, a checked exception, or an error (the code may include try, catch, or finally clauses in any legitimate combination).
Write code that makes proper use of assertions, and distinguish appropriate from inappropriate uses of assertions.
Identify correct statements about the assertion mechanism.
SECTION 3: GARBAGE COLLECTION

State the behavior that is guaranteed by the garbage collection system.
Write code that explicitly makes objects eligible for garbage collection.
Recognize the point in a piece of source code at which an object becomes eligible for garbage collection.
SECTION 4: LANGUAGE FUNDAMENTALS

Identify correctly constructed package declarations, import statements, class declarations (of all forms including inner classes) interface declarations, method declarations (including the main method that is used to start execution of a class), variable declarations, and identifiers.
Identify classes that correctly implement an interface where that interface is either java.lang.Runnable or a fully specified interface in the question.
State the correspondence between index values in the argument array passed to a main method and command line arguments.
Identify all Java programming language keywords. Note: There will not be any questions regarding esoteric distinctions between keywords and manifest constants.
State the effect of using a variable or array element of any kind when no explicit assignment has been made to it.
State the range of all primitive formats, data types and declare literal values for String and all primitive types using all permitted formats bases and representations.
SECTION 5: OPERATORS AND ASSIGNMENTS

Determine the result of applying any operator (including assignment operators and instance of) to operands of any type class scope or accessibility or any combination of these.
Determine the result of applying the boolean equals (Object) method to objects of any combination of the classes java.lang.String, java.lang.Boolean and java.lang.Object.
In an expression involving the operators &, |, &&, || and variables of known values state which operands are evaluated and the value of the expression.
Determine the effect upon objects and primitive values of passing variables into methods and performing assignments or other modifying operations in that method.
SECTION 6: OVERLOADING, OVERRIDING, RUNTIME TYPE AND OBJECT ORIENTATION

State the benefits of encapsulation in object oriented design and write code that implements tightly encapsulated classes and the relationships "is a" and "has a".
Write code to invoke overridden or overloaded methods and parental or overloaded constructors; and describe the effect of invoking these methods.
Write code to construct instances of any concrete class including normal top level classes and nested classes.
SECTION 7: THREADS

Write code to define, instantiate and start new threads using both java.lang.Thread and java.lang.Runnable.
Recognize conditions that might prevent a thread from executing.
Write code using synchronized wait, notify and notifyAll to protect against concurrent access problems and to communicate between threads.
Define the interaction among threads and object locks when executing synchronized wait, notify or notifyAll.
SECTION 8: FUNDAMENTAL CLASSES IN THE JAVA.LANG PACKAGE

Write code using the following methods of the java.lang.Math class: abs, ceil, floor, max, min, random, round, sin, cos, tan, sqrt.
Describe the significance of the immutability of String objects.
Describe the significance of wrapper classes, including making appropriate selections in the wrapper classes to suit specified behavior requirements, stating the result of executing a fragment of code that includes an instance of one of the wrapper classes, and writing code using the following methods of the wrapper classes (e.g., Integer, Double, etc.):
doubleValue
floatValue
intValue
longValue
parseXxx
getXxx
toString
toHexString
SECTION 9: THE COLLECTIONS FRAMEWORK

Make appropriate selection of collection classes/interfaces to suit specified behavior requirements.
Distinguish between correct and incorrect implementations of hashcode methods. 
  
评论】【加入收藏夹】【 】【打印】【关闭
※ 相关链接
 ·一道SCJP考题,要考SCJP的不能不看  (2005-05-12)
 ·SCJP考试心得  (2005-05-12)
 ·SUN认证JAVA程序员(SCJP)招生简章  (2005-05-12)
 ·SUN认证Java2程序员考试(SCJP)试  (2005-05-12)

   栏目导行
  PHP编程
  ASP编程
  ASP.NET编程
  JAVA编程
   站点最新
·致合作伙伴的欢迎信
·媒体报道
·帝国软件合作伙伴计划协议
·DiscuzX2.5会员整合通行证发布
·帝国CMS 7.0版本功能建议收集
·帝国网站管理系统2012年授权购买说
·PHPWind8.7会员整合通行证发布
·[官方插件]帝国CMS-访问统计插件
·[官方插件]帝国CMS-sitemap插件
·[官方插件]帝国CMS内容页评论AJAX分
   类别最新
·谈谈JDBC
·JDBC专题介绍
·JDBC接口技术
·利用weblogic的POOL(连接池)连接
·Jsp中调用Oracle存储过程的小例子
·JSP数据库操作例程
·JSP数据库连接大全
·用连接池提高Servlet访问数据库的效
·一种简单JDBC连接池的实现
·数据库连接池Java实现小结
 
关于帝国 | 广告服务 | 联系我们 | 程序开发 | 网站地图 | 留言板 帝国网站管理系统