以下语句能顺利通过编译: abstract class class1 { } public class mainClass { public static void main(String args[]) { class1 cs1=new class1(); } } 。() 此题为判断题(对,错)。
以下语句能顺利通过编译: abstract class class1 { } public class mainClass { public static void main(String args[]) { class1 cs1=new class1(); } } 。()
此题为判断题(对,错)。
相关考题:
下列程序片段中,能通过编译的是A.public abstract class Animal{ public void speak();}B.public abstract class Animal{ public void speak(){}}C.public class Animal{ public abstract void speak();}D.public abstract class Animal{ public abstract void speak(){}}
阅读下面程序 public class My Val{ public static void main(String args[]){ My Val m=new My Val(); m. amethod(); } public void amethod(){ boolean b[]=new Boolean[5]; } } 程序编译或运行结果是A.1B.nullC.D.编译不能过
下列程序片段中,能通过编译的是( )。A.public abstract class Animal{public void speak( );}B.public abstract class Animal{public void speak( ){};}C.public class Animal{pubilc abstract void speak( );}D.public abstract class Animal{pubile abstract void speak( ){};}
public class Something {public static void main(String[] args) {Other o = new Other();new Something().addOne(o);}public void addOne(final Other o) {o.i++;}}class Other {public int i;}和上面的很相似,都是关于final 的问题,这有错吗?
interface A{int x = 0;}class B{int x =1;}class C extends B implements A {public void pX(){System.out.println(x);}public static void main(String[] args) {new C().pX();}}
4 . 写出程序的输出结果class Class1 {private string str = "Class1.str";private int i = 0;static void StringConvert(string str) {str = "string being converted.";}static void StringConvert(Class1 c) {c.str = "string being converted.";}static void Add(int i) {i++;}static void AddWithRef(ref int i) {i++;}static void Main() {int i1 = 10;int i2 = 20;string str = "str";Class1 c = new Class1();Add(i1);AddWithRef(ref i2);Add(c.i);StringConvert(str);StringConvert(c);Console.WriteLine(i1);Console.WriteLine(i2);Console.WriteLine(c.i);Console.WriteLine(str);Console.WriteLine(c.str);}}
下列代码的编译或执行结果是( )。 public class Myval{ public static void main(string args[]){ MyVal m=new MyVal; aMethod; } public void aMethod{ boolean b[]=new Boolean[5]; System.OUt.println(b[0]); } }A.1B.nullC.0D.编译错误
阅读下面程序 public class MyVal { public static void main(String[]args) { MyVal m=new MyVal(); m.amethod(); } public void amethod() { boolean b[]=new Boolean[5]; } } 程序编译或运行的结果是A.1B.nullC.""D.编译不通过
下列程序片段中,能通过编译的是( )。 A.public abstract class Animal{ public void speak;}S 下列程序片段中,能通过编译的是( )。A.public abstract class Animal{ public void speak;}B.public abstract class Animal{ public void speak{);}C.public class Animal{ pubilc abstract void speak;}D.public abstract class Animal{ pubile abstract void speak{};}
以下程序能顺利通过编译: public class am_I_right { public static void main(String args[]) { this.toString(); } String toString() { retur。() 此题为判断题(对,错)。
以下语句能顺利通过编译: class test { static void sayHello() { this.toString(); } public String toString() { retur。() 此题为判断题(对,错)。
以下语句能顺利通过编译: class class1 { private int i=5; //i为私有属性!! } public class class2 { public static void main(String args[]) { class1 cs1=new class1(); System.out.println(cs1.i); } } 。() 此题为判断题(对,错)。
设有程序如下: abstract class absclass { abstract void method1(); } class conclass extends absclass { public void method1() { System.out.println("子类");} } public class mainclass { public static void main(String args[]) { absclass ac1=new absclass(); //语句1 absclass ac2=new conclass(); //语句2 ac2.method1(); //语句3 } } 则main()方法中的第一条语句(即语句1)可以顺利通过编译。()此题为判断题(对,错)。
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]); } } A、 nullB、 -1C、 编译时出错D、 运行时报错
给定如下Java程序片断: class A{ public A (){ System.out.println("A"); } } class B extends A{ public B(){ System.out.println("B"); } public static void main(String[] args){ B b=new B(); } } 上述程序将()。 A、不能通过编译B、通过编译,输出为:A BC、通过编译,输出为:BD、通过编译,输出为:A
Which declarations will allow a class to be started as a standalone program?() A、public void main(String args[])B、public void static main(String args[])C、public static main(String[] argv)D、final public static void main(String [] array)E、public static void main(String args[])
Public class test ( Public static void stringReplace (String text) ( Text = text.replace (‘j’ , ‘i’); ) public static void bufferReplace (StringBuffer text) ( text = text.append (“C”) ) public static void main (String args[]} ( String textString = new String (“java”); StringBuffer text BufferString = new StringBuffer (“java”); stringReplace (textString); BufferReplace (textBuffer); System.out.printLn (textString + textBuffer); ) ) What is the output?()
class Top { static int x = 1; public Top(int y) { x *= 3; } } class Middle extends Top { public Middle() { x += 1; } public static void main(String [] args) { Middle m = new Middle(); System.out.println(x); } } 结果为:() A、1B、2C、3D、编译失败
现有: class TestA { public void start() { System.out.println("TestA"); } } public class TestB extends TestA { public void start() { System.out.println("TestB"); } public static void main (string[] args) ( ((TestA)new TestB()).start(); ) } 运行结果是哪项?() A、 TeStAB、 TeStBC、编译失败D、运行时抛出异常
多选题Which declarations will allow a class to be started as a standalone program?()Apublic void main(String args[])Bpublic void static main(String args[])Cpublic static main(String[] argv)Dfinal public static void main(String [] array)Epublic static void main(String args[])
单选题现有: class TestA { public void start() { System.out.println("TestA"); } } public class TestB extends TestA { public void start() { System.out.println("TestB"); } public static void main (string[] args) ( ((TestA)new TestB()).start(); ) } 运行结果是哪项?()A TeStAB TeStBC编译失败D运行时抛出异常
单选题给定如下Java程序片断: class A{ public A (){ System.out.println("A"); } } class B extends A{ public B(){ System.out.println("B"); } public static void main(String[] args){ B b=new B(); } } 上述程序将()。A不能通过编译B通过编译,输出为:A BC通过编译,输出为:BD通过编译,输出为:A
单选题执行以下代码,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]); } }A nullB -1C 编译时出错D 运行时报错