单项选择题
public class Item {
private String desc;
public String getDescription() { return desc; }
public void setDescription(String d) { desc = d; }
public static void modifyDesc(Item item, String desc) {
item = new Item();
item.setDescription(desc);
}
public static void main(String[] args) {
Item it = new Item();
it.setDescription(”Gobstopper”);
Item it2 = new Item();
it2.setDescription(”Fizzylifting”);
modifyDesc(it, “Scrumdiddlyumptious”);
System.out.println(it.getDescription());
System.out.println(it2.getDescription());
}
}
What is the outcome of the code? ()
A. Compilation fails.
B. Gobstopper Fizzylifting
C. Gobstopper Scrumdiddlyumptious
D. Scrumdiddlyumptious Fizzylifltng
E. Scrumdiddlyumptious Scrumdiddlyumptious
相关考题
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单项选择题
11. class Payload { 12. private int weight; 13. public Payload(int wt) { weight = wt; } 13. public void setWeight(mt w) { weight = w; } 15. public String toString { return Integer.toString(weight); } 16. } 17. 18. public class TestPayload { 19. static void changePayload(Payload p) { 20. /* insert code here */ 21. } 22. 23. public static void main(String[] args) { 24. Payload p = new Payload(); 25. p.setWeight(1024); 26. changePayload(p); 27. System.out.println(”The value of p is “+ p); 28. } 29. } Which statement, placed at line 20, causes the code to print “The value of p is 420.”?()
A. p.setWeight(420);
B. p.changePayload(420);
C. p = new Payload(420);
D. Payload.setWeight(420);
E. p = Payload.setWeight(420);
F. p = new Payload(); p.setWeight(420); -
多项选择题
11.publicclassCommander{ 12.publicstaticvoidmain(String[]args){ 13.StringmyProp=/*insertcodehere*/ 14.System.out.println(myProp); 15.} 16.} andthecommandline: java-Dprop.custom=gobstopperCommander Whichtwo,placedonline13,willproducetheoutputgobstopper?()
A. System.load(”prop.custom”);
B. System.getenv(”prop.custom”);
C. System.property(”prop.custom”);
D. System.getProperty(”prop.custom”);
E. System.getProperties().getProperty(”prop.custom”); -
单项选择题
public class Yippee2 { static public void main(String [] yahoo) { for(int x= 1; xSystem.out.print(yahoo[x] + “ “); } } } and the command line invocation: java Yippee2 a b c What is the result?()
A.a b
B.b c
C.a b c
D. Compilation fails.
E. An exception is thrown at runtime.
