现有: 1. import java.util.*; 2. class ForInTest { 3.static List list - new ArrayList(): 4. 5.static List getList() { return list; } 6. 7.public static void main (Strincj[] args) { 8.list.add("a"); list.add("b"); list.add("c"); 9. //insert code here 10. System.out.print (o); 11. } 12. } 第9行插入哪一项将输出abc?()
第1题:
现有:
1.importjava.util.*;
2.classForInTest{
3.staticListlist-newArrayList():
4.
5.staticListgetList(){returnlist;}
6.
7.publicstaticvoidmain(Strincj[]args){
8.list.add("a");list.add("b");list.add("c");
9.//insertcodehere
10.System.out.print(o);
11.}
12.}
第9行插入哪一项将输出abc?()
第2题:
11. public void addStrings(List list) { 12. list.add(”foo”); 13. list.add(”bar”); 14. } What must you change in this method to compile without warnings?()
第3题:
1.importjava.util.*;2.classForInTest{3.staticListlist=newArrayList();4.5.staticListgetList(){returnlist;}6.7.publicstaticvoidmain(String[]args){8.list.add("a");list.add("b");list.add("c");9.//insertcodehere10.System.out.print(o);11.}12.}第9行插入哪一项将输出abc?()
A.for(charo:list)
B.for(Objecto:getList())
C.for(Objecto:getList();)
D.for(Objecto:o.getList())
第4题:
You are writing a JSP that includes scriptlet code to declare a List variable and initializes that variable to anArrayList object. Which two JSP code snippets can you use to import these list types?()
第5题:
现有: 3. import java.util.*; 4. class ForInTest { 5.static List list=new ArrayList(); 6. 7.public static void main (String [] args) { 8.list. add("a"); list. add("b");list. add( "c"); 9. //insert code here 10. System.out.print (o); 11. } 12. } 哪一行插入到第9行将导致输出“abc"?()
第6题:
现有: 3.import java.util.*; 4.class ForInTest { 5.static List list = new ArrayList(); 6.public static void main (String [] args){ 7. 8.list.add("a"); list.add("b"); list.add("c"); 9.//insert code here 10.System.out.print(o); } } 哪一行插入到第9行将导致输出“abc”?()
第7题:
10. interface A { void x(); } 11. class B implements A { public void x() { } public voidy() { } } 12. class C extends B { public void x() {} } And: 20. java.util.List list = new java.util.ArrayList(); 21. list.add(new B()); 22. list.add(new C()); 23. for (A a:list) { 24. a.x(); 25. a.y();; 26. } What is the result?()
第8题:
现有:3.importjava.util.*;4.classForInTest{5.staticListlist=newArrayList();6.7.publicstaticvoidmain(String[]args){8.list.add("a");list.add("b");list.add("c");9.//insertcodehere10.System.out.print(o);11.}12.}哪一行插入到第9行将导致输出abc”?()
A.for(Objecto:list)
B.for(Iteratoro:list)
C.for(Objecto:list.iterator())
D.for(Iteratoro:list.iterator();o.hasNext();)
第9题:
public static void search(List
第10题:
1. import java.util.*; 2. class ForInTest { 3. static List list = new ArrayList(); 4. 5. static List getList() { return list; } 6. 7. public static void main(String [] args) { 8. list.add("a"); list.add("b"); list.add("c"); 9. // insert code here 10. System.out.print(o); 11. } 12. } 第 9 行插入哪一项将输出 abc?()