📄 中文java技术网scjp考试题310-025(第一套).htm
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我这还有其他的一些,如果全部打印可能100多页(双面)的样子!我将陆续的在这里粘贴出来!(如果可以的话),一共分为几套!这第一套只有19题,其他的几套有点多,300多题的都有,我归纳的,我同事说看完了它,考试就没问题,所以我就搜集了这么多,我也看的头大,所以发出来给大伙分享,敬请关注!!
1. Which statement are characteristics of the >> and >>> operators.
A. >> performs a shift
B. >> performs a rotate
C. >> performs a signed and >>> performs an unsigned shift
D. >> performs an unsigned and >>> performs a signed shift
E. >> should be used on integrals and >>> should be used on floating
point types
C.
2. Given the following declaration
String s = "Example";
Which are legal code?
A. s >>> = 3;
B. s[3] = "x";
C. int i = s.length();
D. Strin......' />
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SCJP考试题310-025(第一套) </font>
<font size=1 color=gray>阅读次数3316</font> <p align='right'>出处 CN-JAVA原创：huiwu917 </p> </p>
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这是SCJP的考试原题,是1999-2000期间的!提供给想考SCJP的参考!<br />
我这还有其他的一些,如果全部打印可能100多页(双面)的样子!我将陆续的在这里粘贴出来!(如果可以的话),一共分为几套!这第一套只有19题,其他的几套有点多,300多题的都有,我归纳的,我同事说看完了它,考试就没问题,所以我就搜集了这么多,我也看的头大,所以发出来给大伙分享,敬请关注!!<br />
1. Which statement are characteristics of the >> and >>> operators.<br />
A. >> performs a shift<br />
B. >> performs a rotate<br />
C. >> performs a signed and >>> performs an unsigned shift<br />
D. >> performs an unsigned and >>> performs a signed shift<br />
E. >> should be used on integrals and >>> should be used on floating<br />
point types<br />
C.<br />
2. Given the following declaration<br />
String s = "Example";<br />
Which are legal code?<br />
A. s >>> = 3;<br />
B. s[3] = "x";<br />
C. int i = s.length();<br />
D. String t = "For " + s;<br />
E. s = s + 10;<br />
CDE.<br />
3. Given the following declaration<br />
String s = "hello";<br />
Which are legal code?<br />
A. s >> = 2;<br />
B. char c = s[3];<br />
C. s += "there";<br />
D. int i = s.length();<br />
E. s = s + 3;<br />
CDE.<br />
4. Which statements are true about listeners?<br />
A. The return value from a listener is of boolean type.<br />
B. Most components allow multiple listeners to be added.<br />
C. A copy of the original event is passed into a listener method.<br />
D. If multiple listeners are added to a single component, they all must<br />
all be friends to each other.<br />
E. If the multiple listeners are added to a single component, the order<br />
[in which listeners are called is guaranteed].<br />
BC.<br />
5. What might cause the current thread to stop executing.<br />
A. An InterruptedException is thrown.<br />
B. The thread executes a wait() call.<br />
C. The thread constructs a new Thread.<br />
D. A thread of higher priority becomes ready.<br />
E. The thread executes a waitforID() call on a MediaTracker.<br />
ABDE.<br />
6. Given the following incomplete method.<br />
1. public void method(){<br />
2.<br />
3. if (someTestFails()){<br />
4.<br />
5. }<br />
6.<br />
7.}<br />
You want to make this method throw an IOException if, and only if, the<br />
method someTestFails() returns a value of true.<br />
Which changes achieve this?<br />
A. Add at line 2: IOException e;<br />
B. Add at line 4: throw e;<br />
C. Add at line 4: throw new IOException();<br />
D. Add at line 6: throw new IOException();<br />
E. Modify the method declaration to indicate that an object of [type]<br />
Exception might be thrown.<br />
CE.<br />
7. Which modifier should be applied to a method for the lock of the<br />
object this to be obtained prior to executing any of the method body?<br />
A. final<br />
B. static<br />
C. abstract<br />
D. protected<br />
E. synchronized<br />
E.<br />
8. Which are keywords in Java?<br />
A. NULL<br />
B. true<br />
C. sizeof<br />
D. implements<br />
E. instanceof<br />
DE.<br />
9. Consider the following code:<br />
Integer s = new Integer(9);<br />
Integer t = new Integer(9);<br />
Long u = new Long(9);<br />
Which test would return true?<br />
A. (s==u)<br />
B. (s==t)<br />
C. (s.equals(t))<br />
D. (s.equals(9))<br />
E. (s.equals(new Integer(9))<br />
CE.<br />
10. Why would a responsible Java programmer want to use a nested class?<br />
A. To keep the code for a very specialized class in close association<br />
with the class it works with.<br />
B. To support a new user interface that generates custom events.<br />
C. To impress the boss with his/her knowledge of Java by using nested<br />
classes all over the place.<br />
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