游泳池和水上游乐池的池水循环方式，应根据（）等因素综合比较确定。

则请说明编译失败的原因。 public class Outer { public String name="Outer"; private class Inner { String name="inner"; void showName(){ System.out.println(name); } } public static void main(String[] args) { Inner inner = new Outer().new Inner(); System.out.println(inner.name); } }

【填空题】预测程序运行结果 class Person{ String name; public void setName(String name) { this.name=name;} public String getName() {return name;} } class Student extends Person{ } class Teacher extends Person{ } public class StudentDemo{ public static void main(String []args){ Student s=new Student(); s.setName("Tom"); System.out.println(s.getName()); Teacher t=new Teacher(); t.setName("John"); System.out.println(t.getName()); }}

以下程序有何错误？

abstract class Name{

private String name ;

public abstract boolean isSupidName(String name) {}

}

nt(String name, int age){ this.name=name; this.age=age;} public void show(){ System.out.println(“name=” name+” age=”+age);} } public class StudentDemo{ public static void main(String []args){ Student s=new Student(); s.show();}}

下列程序输出结果为()。 public class test { public static void main (String args[]) { int a=0； outer：for(int i=0；i＜2；i + +) { for(int j=0；j＜2；j+ +) { if(j＞i) { continue outer； } a+ +； } } System.out.println(a)； } }

A．0

B．2

C．3

D．4

以下代码被顺序调用？请选择输出结果 () class People { String name; public People() { System.out.print(1); } public People(String name) { System.out.print(2); this.name = name; } } class Child extends People { People father; public Child(String name) { System.out.print(3); this.name = name; father = new People(name + ":F"); } public Child(){ System.out.print(4); } } public class Test{ public static void main(String[] args){ People p = new Child("梅西"); } }

A、312

B、32

C、432

D、132

【分录题】以下程序段的输出结果为 （注意空格） public class Father { String name, address, tel; int age; public Father(String name, int age) { this.name = name; this.age = age; } void out() { System.out.print("姓名:" + name); System.out.print(" 年龄:" + age); } void outOther() { System.out.print(" 家庭住址:" + address); System.out.print(" 电话:" + tel); } public static void main(String args[]) { Son son = new Son("Tom", 15); son.address = "金水区"; son.school = "九中"; son.tel = "66123456"; son.out(); } } class Son extends Father { String school; public Son(String name, int age) { super(name, age); } void out() { super.out(); super.outOther(); System.out.println(" 学校:" + school); } }

下列程序输出结果为()。public class test { public static void main(String args[]) { int a=0; outer: for(int i=0;i＜2;i++) { for(int j=0;j＜2;j++) { if(j＞i) { continue outer; } a++; } } System.out.println(a); }}

A．0

B．2

C．3

D．4

写出下面程序的执行结果。 class Program { static void Main(string[] args) { OnlineGaming onlineGaming = new OnlineGaming("泡泡龙", "小龙","打泡泡"); Console.WriteLine(onlineGaming.ToString()); } } class OnlineGaming { string name; string npc1; string plots; public OnlineGaming(string name, string npc1, string plots) { this.name = name; this.npc1 = npc1; this.plots = plots; } public string ToString() { string s = "网络游戏" + name + "\n情节为" + plots + "\nNPC1" + npc1; return s; } }