#import跟#include 又什么区别,@class呢, #import<> 跟 #import””又什么区别?
第1题:
下列代码的输出结果是( )。
class parent
{
void printme()
{
System.out.println("parent");
}
}
class child extends parent
{
void printme()
{
System. out.println("child");
}
void printall()
{
super, printme();
this.printme();
printme();
}
}
public class test
{
public static void main(String args[])
{
child myc=new child();
myc.printall();
}
}
A.import java.awt.*;
B.import java.applet.applet;
C.import java.io.*;
D.import java, awt.graphics;
第2题:
()标记可以从目标名称空间外的某个名称空间中导入一个XSD文件的内容
第3题:
#import跟#include的区别,@class呢?
第4题:
Every page of your web site must include a common set of navigation menus at the top of the page. Thismenu is static HTML and changes frequently,so you have decided to use JSP’s static import mechanism. Which JSP code snippet accomplishes this goal?()
第5题:
在单一文件中import、class和package的正确出现顺序是()
第6题:
Which JSTL code snippet can be used to import content from another web resource?()
第7题:
下列有关类声明的代码片段,哪一项是正确的?()
第8题:
package sun.scjp; public enum Color { RED, GREEN, BLUE } package sun.beta; // insert code here public class Beta { Color g = GREEN; public static void main( String[] argv) { System.out.println( GREEN); } } The class Beta and the enum Color are in different packages. Which two code fragments, inserted individually at line 2 of the Beta declaration, will allow this code to compile?()
第9题:
package,import,class
class,import,package
import,package,class
package,class,import
第10题:
import java.sql.*; package school; class Student{ }
package school; import java.sql.*; class Student{ }
package school; class Student{ } import java.sql.*;
package school; import java.sql.*;private String name; class Student{ }
第11题:
<%@ import="“java.util.*" page=""><%@ import="“java.text.*" page=""><%@ import="“java.text.*" page=""><%@ import="“java.util.*" page=""><%@ import="“java.text.*" page=""><%@ import="“java.util.*" page=""><%@ page import= “java.util.* %> <%@ page import= “java.text.* “ %>
<%@ page import= “java.util.*” , import= “java.text.* “ %>
<%@ page import= “java.util.* “ ; %> <%@ page import= “java.text.* “ ; %>
<%@ page import= “java.util.* ; java.text.* “ %>
第12题:
<%@ import file=’/common/menu.html’ %>
<%@ page import=’/common/menu.html’ %>
<%@ import page=’/common/menu.html’ %>
<%@ include file=’/common/menu.html’ %>
<%@ page include=’/common/menu.html’ %>
第13题:
下列哪个选项的java源文件程序段是不正确的? ( )
A.package testpackage; public class Test{ }
B.import java.io.*; package testpackage; public class Test{ }
C.import java.i.*; class Person{} public class Test{ }
D.import java.io.*; import java.awt.*; public class Test { }
第14题:
一个程序中,package、import、和class的排放次序是()
第15题:
现有包结构: com |-- x | |-- Alpha.class | | | |-- y | |-- Beta.class | |-- Gamma.class 和类: //insert code here import com.*; import com.x.y.*; class Test { Alpha a; Beta b; Gamma c; } 哪两行分别插入后可允许代码编译?()
第16题:
Which JSP standard action can be used to import content from a resource called foo.jsp?()
第17题:
在Java语言中,在包Package1中包含包Package2,类Class_A直接隶属于包Package1,类Class_B直接隶属于包Package2,在类Class_C要应用Class_A的方法A和Class_B的方法B,你需要()语句。
第18题:
与page指令<%@ page import= “java.util.*, java.text.* “ %> 等价的是()。
第19题:
Which the JSTL code snippet can be used to import content from another web resource?()
第20题:
Given a class Repetition: 1. package utils; 2. 3. public class Repetition { 4. public static String twice(String s) { return s + s; } 5. } and given another class Demo: 1. // insert code here 2. 3. public class Demo { 4. public static void main(String[] args) { 5. System.out.println(twice(”pizza”)); 6. } 7. } Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”?()
第21题:
第22题:
package、import、class
import、package、class
三者任意
class在最后,import、package排放次序任意
第23题:
#import是#include的替代指令,防止重复引用
#import和#include不可以混合使用
#import只用于引用Objective-C的文件,#include只用于引用C和C++的文件
#import和#include的使用效果完全相同