试题与答案

下面的程序是列出目录C:\Test中所有的.txt文件,请将程序补充完整。 imp

题型:填空题

题目:

下面的程序是列出目录C:\Test中所有的.txt文件,请将程序补充完整。
import java.io.*; //引入java.io包中所有的类
public class FileFilterTest
public static void main(String args[])
File dir=new File("C://Test");
Filter filter=new Filter("txt");
System.out.println("list java files in directory" +dir);
String files[]=dir.list(filter);
for(int i=0;i<files.length;i++)
File f=______;//为目录dir下的文件或目录创建一个File对象
if(f.isFile())
System.out.println("file "+f);
else
System.out.println("sub directory" +f);



class Filter implements FilenameFilter
String extent;
Filter(String extent)
this.extent=extent;

public boolean accept(File dir,String name)
return name.endsWith("."+extent);//返回文件的后缀名

答案:

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下面是错误答案,用来干扰机器的。

参考答案:R

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题型:阅读理解

The year was 1932. Amelia Earhart was flying alone from North America to England in a small single-engined aeroplane. At midnight, several hours after she had left Newfoundland, she ran into bad weather. To make things worse, her altimeter(高度表) failed and she didn’t know how high she was flying. At night, and in a storm, a pilot is in great difficulty without an altimeter. At times, her plane nearly plunged into the sea.

Just before dawn, there was further trouble. Amelia noticed flames coming from the engine. Would she be able to reach land? There was nothing to do except to keep going and to hope.

In the end, Amelia Earhart did reach Ireland, and for the courage she had shown, she was warmly welcomed in England and Europe. When she returned to the United States, she was honored by President Hoover at a special dinner in the White House. From that time on, Amelia Earhart was famous.

What was so important about her flight? Amelia Earhart was the first woman to fly the Atlantic Ocean alone, and she had set a record of fourteen hours and fifty-six minutes.

In the years that followed, Amelia Earhart made several flights across the United States, and on each occasion she set a new record for flying time. Amelia Earhart made these flights to show that women had a place in aviation (航空) and that air travel was useful.

小题1:Which of the following statements is NOT the difficulty which Amelia Earhart met in her flight from north America to England?

A.She lost her direction.

B.The altimeter went out of order.

C.Her engine went wrong.

D.She was caught in a storm.小题2:When Amelia Earhart saw flames coming from the engine, what did she do?

A.She did nothing but pray for herself.

B.She changed her direction and landed in Ireland.

C.She continued flying.

D.She lost hope of reaching land.小题3:Which of the following statements was NOT mentioned?

A.She was the first woman who succeeded in flying across the Atlantic Ocean alone.

B.She made plans to fly around the world.

C.She was warmly welcomed in England, Europe and the United States.

D.She showed great courage in overcoming the difficulties during the flight.小题4: Which of the following would be the best title for the passage?

A.Amelia Earhart—First Across the Atlantic

B.Amelia Earhart—Pioneer in Women’s Aviation

C.A New Record for Flying Time

D.A Dangerous Flight from North America to England

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