此处,Something 类的文件名叫OtherThing.javaclass Something {private static void main(String[] something_to_do) {System.out.println("Do something ...");}}这个好像很明显。
此处,Something 类的文件名叫OtherThing.java
class Something {
private static void main(String[] something_to_do) {
System.out.println("Do something ...");
}
}
这个好像很明显。
相关考题:
下列选项中的 方法可以正确地加入类Child中,且父类的方法不会被覆盖。 public class Parent{ public int addValue(int a,int b){ int s; s=a+b; return s; } } class Child extends Parent{ }A.int addValue(int a,int b){∥do something…}B.public void addValue( ){∥do something…}C.public int addValue(int a,int b)throws MyException{∥do something…}D.public float addValue(int a,int b,float b=1.0){∥do something…}
有如下程序段: public class Parent { public int addValue (int a,intB){ int s; s=a+b; return 3; } } class Child extends Parent {} 则下列选项中,可以正确加入类Child中且父类的方法不会被覆盖的是( )。A.int addValue (int a,intB){//do something...}B.public void addValue() {//do something...}C.public int addValue (int a,intB)throws MyException {//do something...}D.public float addValue (int a,int b,float b=1.0) {//do someting...}
下列程序的输出结果是_______。class Test{public static void main(String args []){int m=6;do{m--:}while(m>0);System.out.println("m="+m);}}
阅读下列代码段,选出该代码段的正确的文件名( )。 class A { void method () { System.out.println ("methodl in class A"); } } public class B { void method2 () { System.out.println("method2 in class B"); } public static void main (String args[]) { System.out.println ("main () in class B"); } }A.A.javaB.A.classC.B.classD.B.java
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?
public class Something {public static void main(String[] args) {Something s = new Something();System.out.println("s.doSomething() returns " + doSomething());}public String doSomething() {return "Do something ...";}}看上去很完美。
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[])
interface Data { public void load(); } abstract class Info { public abstract void load(); } Which class correctly uses the Data interface and Info class?() A、 public class Employee extends Info implements Data { public void load() { /*do something*/ } }B、 public class Employee implements Info extends Data { public void load() { /*do something*/ } }C、 public class Employee extends Info implements Data { public void load() { /*do something */ } public void Info.load() { /*do something*/ } }D、 public class Employee implements Info extends Data { public void Data.load() { /*dsomething */ } public void load() { /*do something */ } }E、 public class Employee implements Info extends Data { public void load() { /*do something */ } public void Info.load(){ /*do something*/ } }F、 public class Employee extends Info implements Data{ public void Data.load() { /*do something*/ } public void Info.load() { /*do something*/ } }
下列有关main()方法的签名正确的是哪些?()A、 public static void main(String[] args){}B、 public static void main(){}C、 public static void main(String args[]){}D、 public void static main(String[] args){}
下面哪些选项是正确的main方法说明?()A、 public main(String args[])B、 public static void main(String args[])C、 private static void main(String args[])D、 void main()
声明Java独立应用程序main()方法时,正确表达是()。A、public static void main(String[]args){…}B、private static void main(String args[]){…}C、public void main(String args[]){…}D、public static void main(){…}
现有: interface Data {public void load();} abstract class Info {public abstract void load();} 下列类定义中正确使用Data和Info的是哪项?() A、 public class Employee implements Info extends Data { public void load(){/*dosomething*/} }B、public class Employee extends Inf.implements Data{ public void load() {/*do something*/} }C、public class Empl.yee implements Inf extends Data{ public void Data.1oad(){* do something*/} public void load(){/*do something*/} }D、public class Employee extends Inf implements Data { public void Data.1oad() {/*do something*/) public void info.1oad(){/*do something*/} }
final class Tree { private static String tree = "tree "; String getTree() { return tree; } } class Elm extends Tree { private static String tree = "elm "; public static void main(String [] args) { new Elm().go(new Tree()); } void go(Tree t) { String s = t.getTree()+Elm.tree+tree+(new Elm().getTree()); System.out.println(s); } } 结果为:() A、elm elm elm elmB、tree elm elm elmC、tree elm tree elmD、编译失败
public class Parent { public int addValue( int a, int b) { int s; s = a+b; return s; } } class Child extends Parent { } Which methods can be added into class Child?() A、 int addValue( int a, int b ){// do something...}B、 public void addValue (){// do something...}C、 public int addValue( int a ){// do something...}D、 public int addValue( int a, int b )throws MyException {//do something...}
Which code fragments will succeed in printing the last argument given on the command line to the standard output, and exit gracefully with no output if no arguments are given?() CODE FRAGMENT a: public static void main(String args[]) { if (args.length != 0) System.out.println(args[args.length-1]); } CODE FRAGMENT b: public static void main(String args[]) { try { System.out.println(args[args.length]); } catch (ArrayIndexOutOfBoundsException e) {} } CODE FRAGMENT c: public static void main(String args[]) { int ix = args.length; String last = args[ix]; if (ix != 0) System.out.println(last); } CODE FRAGMENT d: public static void main(String args[]) { int ix = args.length-1; if (ix 0) System.out.println(args[ix]); } CODE FRAGMENT e: public static void main(String args[]) { try { System.out.println(args[args.length-1]); }catch (NullPointerException e) {} } A、Code fragment a.B、Code fragment b.C、Code fragment c.D、Code fragment d.E、Code fragment e.
public class Test { private static int[] x; public static void main(String[] args) { System.out.println(x[0]); } } What is the result?() A、 0B、 nullC、 Compilation fails.D、 A NullPointerException is thrown at runtime.E、 An ArrayIndexOutOfBoundsException is thrown at runtime.
下面哪些main方法可用于程序执行()A、public static void main(String[]args)B、public static void main(String[]x)C、public static void main(Stringargs[])D、public void main(String[]args)
单选题public class Test { private static int[] x; public static void main(String[] args) { System.out.println(x[0]); } } What is the result?()A 0B nullC Compilation fails.D A NullPointerException is thrown at runtime.E An ArrayIndexOutOfBoundsException is thrown at runtime.
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Which code fragments will succeed in printing the last argument given on the command line to the standard output, and exit gracefully with no output if no arguments are given?() CODE FRAGMENT a: public static void main(String args[]) { if (args.length != 0) System.out.println(args[args.length-1]); } CODE FRAGMENT b: public static void main(String args[]) { try { System.out.println(args[args.length]); } catch (ArrayIndexOutOfBoundsException e) {} } CODE FRAGMENT c: public static void main(String args[]) { int ix = args.length; String last = args[ix]; if (ix != 0) System.out.println(last); } CODE FRAGMENT d: public static void main(String args[]) { int ix = args.length-1; if (ix 0) System.out.println(args[ix]); } CODE FRAGMENT e: public static void main(String args[]) { try { System.out.println(args[args.length-1]); }catch (NullPointerException e) {} }ACode fragment a.BCode fragment b.CCode fragment c.DCode fragment d.ECode fragment e.
单选题现有: class Tree { private static String tree = "tree "; String getTree () { return tree; } } class Elm extends Tree { private static String tree = "elm "; public static void main (String [] args) { new Elm() .go (new Tree()) ; } } void go (Tree t) { String s = t.getTree () +Elm.tree + tree + (new Elm() .getTree ()) ; System.out.println (s) ;} 结果为:()A elm elm elm elmB tree elm elm elmC tree elm elm treeD tree elm tree elm
多选题下列有关main()方法的签名正确的是哪些?()Apublic static void main(String[] args){}Bpublic static void main(){}Cpublic static void main(String args[]){}Dpublic void static main(String[] args){}
单选题interface Data { public void load(); } abstract class Info { public abstract void load(); } Which class correctly uses the Data interface and Info class?()A public class Employee extends Info implements Data { public void load() { /*do something*/ } }B public class Employee implements Info extends Data { public void load() { /*do something*/ } }C public class Employee extends Info implements Data { public void load() { /*do something */ } public void Info.load() { /*do something*/ } }D public class Employee implements Info extends Data { public void Data.load() { /*dsomething */ } public void load() { /*do something */ } }E public class Employee implements Info extends Data { public void load() { /*do something */ } public void Info.load(){ /*do something*/ } }F public class Employee extends Info implements Data{ public void Data.load() { /*do something*/ } public void Info.load() { /*do something*/ } }
多选题下面哪些main方法可用于程序执行()Apublic static void main(String[]args)Bpublic static void main(String[]x)Cpublic static void main(Stringargs[])Dpublic void main(String[]args)
单选题下面哪些选项是正确的main方法说明?()A public main(String args[])B public static void main(String args[])C private static void main(String args[])D void main()