Java语言所有异常类均继承自_Java将运行错误分为两类:(__)和(__), 其对应的类均派生自(_

Java语言所有异常类均继承自_Java将运行错误分为两类:(__)和(__), 其对应的类均派生自(__)类;...

【单选题】设 x,y 均为已定义的类名,下列声明对象x1的语句中正确的是( )

【判断题】构造函数的方法名可以由编程人员任意命名。

【单选题】能够实现对原文的鉴别和不可否认性的认证技术是( )。

【单选题】设有定义语句int a[]={66,88,99}; 则以下对此语句的叙述错误的是( )。

【判断题】Unicode码与ASCII码相同。

【多选题】已知如下定义:String s = “story”, 下面哪个表达式是合法的:

【单选题】定义主类的类头时可以使用的访问控制符是( )

【单选题】下列程序段执行后t1的结果是( )。int x1 = 9, x2 = 6, t1; t1 = x1 > x2 ? x1 : x2;

【填空题】定义类的保留字是(__)定义接口的保留字是(__);

【多选题】以下属于正确的java注释有

【单选题】方法的作用不包含:( )

【填空题】listening unit test 1-5 Unit 7 满分: 10 分 Part I Directions: In this section, you’ll hear some passages. At the end of each passage, you'll hear some questions. Both the passage and the questions will be spoken only once. After each question, choose the best answer from the four choices marked A, B, C, and D. Questions 1 to 4 are based on the passages you have just heard. 1 ) A . Doing a business. B . Signing a contract. C . Making a travel. D . Starting a new trade. 2 ) A . Receiving a diamond ring. B . Getting a bunch of flowers. C . Obtaining a large amount of money. D . Receiving a new house. 3 ) A . Have the ceremony in a church. B . Get married in a scenic spot. C . Have the ceremony while riding on horseback. D . Have the ceremony in a hotel. 4 ) A . The style of colors, decorations and music. B . The bride wears a long white wedding dress. C . The wedding places and the clothes for the guests. D . The way of inviting friends to the ceremony. Questions 5 to 7 are based on the passages you have just heard. 5 ) A . All those who get on well with each other are friends. B . Friends are closer than people who just get on well with each other. C . Everyone understands clearly how to make friends. D . Factors like age and background aren’t important in friendship. 6 ) A . Even friends may have differences of opinions. B . Supporting and understanding in friendship results from shared background. C . It generally takes time for people to become close friends. D . Someone’s habits may annoy his or her friends. 7 ) A . They must hold a ceremony to create a powerful bond. B . They have to eliminate differences in background. C . They should make friends with those who are of same age and race. D . They should support and understand each other. Part II Directions: In this section, you will hear some news reports. At the end of each news report, you will hear some questions. Both the news and the question will be spoken only once. After each question, Choose the best answer from the four choices marked A, B, C, and D. Questions 8 to 10 are based on the passages you have just heard. 8 ) A . Intelligent and educated. B . Sociability and good cook. C . Dependable character. D . Mutual attraction and love. 9 ) A . 17th place. B . 20th place. C . Last place. D . 12th place. 10 ) A . Someone who is well educated and a good cook. B . Someone who is good at housekeeping and cooking. C . Someone who can share the financial burden. D . Someone who has a good appearance.

【填空题】Java程序结构分为(__),(__)和(__)三种;

【单选题】既能发电 , 又能储存能量的是 ( ) 。

【单选题】结合了不同类型的防火墙特点的是( )。

【填空题】面向对象程序的主要特征:继承,(__),(__);

【多选题】下面句话是正确的(AD)

【单选题】以下()是规范交易主体的有关法律。

【判断题】一个Java类可以有一个直接父类,并可以实现多个接口。

【判断题】Java语言是编译解释型语言

【多选题】如下哪些是Java中有效的关键字()

【填空题】Java语言中提供的GUI功能主要由java.awt包和(__)包中的类和接口实现;

【填空题】Java将运行错误分为两类:(__)和(__), 其对应的类均派生自(__)类;

【判断题】Java支持多重继承。