阅读以下代码: public class Test{ public static void main(){ System.out.println(“x=”+x); } } 请问,代码运行的结果是?()
package test1; public class Test1 { static int x = 42; } package test2; public class Test2 extends test1.Test1 { public static void main(String[] args) { System.out.println(“x = “ + x); } } What is the result?()
Given: package com.sun.scjp; public class Geodetics { public static final double DIAMETER = 12756.32; //kilometers } Which two correctly access the DIAMETER member of the Geodetics class?() https://assets.asklib.com/images/image2/2018080114194111528.jpg
package foo; public class Outer { public static class Inner { } } Which statement is true?()
package foo; public class Outer ( public static class Inner ( ) ) Which statement is true?()
现有: public class Pet() public class Cat extends Pet{) 执行代码 Cat c- new Cat(); Pet p= (Pet)c; 后下列哪项是正确的?()
现有: class Test2 f public static void main (String [] args) { short a,b,C; a=l; b=2; C=a+b; a+=2: } 以上代码中,哪一句是错误的?()
现有: public class Pet() public class Cat extends Pet{) 执行代码 Cat c- new Cat(); Pet p= (Pet)c; 后下列哪项是正确的?()
执行以下代码,输出结果的结果是? () public class Test{ public String[] ss = new String[5]; public static void main(String[] args){ System.out.println(ss[1]); } }
给定java程序Test.java如下,编译运行,结果是( ) 。package com;class Test {protected void talk () {System.out.print(talk) ; }}给定Test 的子类Test2,代码如下:packagecom.util;import com.*;public class Test2 extends Test {public static void main (String[]args) {new Test2() .talk() ;}
存在以下JavaBean和JSP页面:Person.java:package x;public class Person {String name;public String getName() {return name;}public void setName(String name) {this.name = name;}}index.jsp:访问http://localhost:8080/项目名/index.jsp?name=John时的页面输出为
给出下面的代码段:( )public class Base{int w, x, y, z;public Base(int a, int b){x=a; y=b;}public Base(int a, int b, int c, int d){//assignment x=a, y=bw=d;z=c;}}在代码说明//assignment x=a, y=b处写下如下哪几个代码是正确的?()
如果在Main.java 中撰写以下程序代码:public class Main { public static void main(string[] args) { System.out.println("Hello World"); } } 以下描述正确的是()
下面程序段的输出结果为package test;public class Class A{ int x=20; static int y=6; public
14、关于以下C代码的说法正确的是 public abstract class Animal { public abstract void Eat(); } public class Tiger : Animal { public override void Eat() { Console.WriteLine("老虎吃..."); } } public class Tigress : Tiger { static void Main() { Tigress tiger = new Tigress(); tiger.Eat(); } }
以下代码可以编译通过 public class Test01 { public static void main(); } }
1、以下各语言书写的代码可认为其功能是相同的。对于该代码,哪项判断是正确的? C/C++:include <stdio.h> int hehe(){ printf("hehe"); hehe(); return 0; } int main(){ hehe(); return 0; } Java语言:public class Main{ public static int hehe() { System.out.println("hehe"); hehe(); return 0; } public static void main(String args[]) { hehe(); } } Python语言:def hehe(): print("hehe") hehe() return 0 hehe()
某 Java源文件代码如下: public class A { int a; } class B { int b; } class C { public static void main()
20、下列代码中构造方法的返回类型是() class Village { public static void main(String args [ ]) { Village c =new Village () ; } Village () { System .out .println(“hiding in Village” public class Village { Village() { System.out.println(“hiding in Village”) ; } public static void main(String args [ ]) { Village c =new Village(); }
以下监听器部署到web.xml,格式正确的是 package listener; public class OnlineCounterListener implements HttpSessionListener { public MySessionListener() { } }
10、以下程序代码运行时输出的结果是()。public class Foo{ public static void main(String[] args){ try{ System.out.print('A'); foo1(); System.out.print('B'); }catch(RuntimeException e){ System.out.print('C'); }catch(Exception e){ System.out.println('D'); } } public static void foo1() throws RuntimeException{ throw new RuntimeException(); } }
以下代码中包含错误。请指出所有有错误的代码行数 class S { int x = 7; std::string s{"Hello"}; public: S() { } void S(int x) { this->x = x; } };
以下代码可以编译通过: final class Animal { public final void shout(); } }
以下代码的输出是什么 public class Test { public static void main(); } }