单项选择题
Given the command line java Pass2 and：
public class Pass2 {
public void main（String [] args） {
int x=6；
Pass2 p = new Pass2（）；
p.doStuff（x）；
System.out.print（” main x = “+ x）；
}
void doStuff（int x） {
System.out.print（” doStuffx = “+ x++）；
}
}
What is the result？（）
A. Compilation fails.
B. An exception is thrown at runtime.
C. doStuffx = 6 main x = 6
D. doStuffx = 6 main x = 7
E. doStuffx = 7 main x = 6
F. doStuffx = 7 main x = 7
相关考题
-
单项选择题
Given a correctly compiled class whose source code is： package com.sun.sjcp； public class Commander { public static void main（String[] args） { // more code here } } Assume that the class file is located in /foo/com/sun/sjcp/， the current directory is /foo/， and that the classpath contains “.“ （current directory）. Which command line correctly runs Commander？（）
A. java Commander
B. java com. sim. sjcp.Commander
C. java com/sun/sjcp/Commander
D. java -cp com.sun.sjcp Commander
E. java -cp com/sun/sjcp Commander -
单项选择题
11. public class Counter { 12. public static void main（String[] args） { 13. int numArgs = /* insert code here */； 14. } 15. } and the command line： java Counter one fred 42 Which code， inserted at line 13， captures the number of arguments passed into the program？（）
A. args.count
B. args.length
C. args.count（）
D. args.length（）
E. args.getLength（） -
单项选择题
1. interface DoStuff2 { 2. float getRange（int low， int high）； } 3. 4. interface DoMore { 5. float getAvg（int a， int b， int c）； } 6. 7. abstract class DoAbstract implements DoStuff2， DoMore { } 8. 9. class DoStuff implements DoStuff2 { 10. public float getRange（int x， int y） { return 3.14f； } } 11. 12. interface DoAll extends DoMore { 13. float getAvg（int a， int b， int c， int d）； } What is the result？（）
A. The file will compile without error.
B. Compilation fails. Only line 7 contains an error.
C. Compilation fails. Only line 12 contains an error.
D. Compilation fails. Only line 13 contains an error.
E. Compilation fails. Only lines 7 and 12 contain errors.
F. Compilation fails. Only lines 7 and 13 contain errors.
G. Compilation fails. Lines 7， 12， and 13 contain errors.
