单项选择题
11.public class Counter{
12.public static void main(String[]args){
13.int numArgs=/*insert code here*/;
14.}
15.}
and the command line:java Counter one fred 42 Which code,inserted at line 13,captures the number of arguments passed into the program?()
A.args.count
B.args.length
C.args.count()
D.args.length()
E.args.getLength()
相关考题
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单项选择题
A UNIX user named Bob wants to replace his chess program with a new one,but he is hot sure where the old one is in stalled.Bob is currently able to run a Java chess program starting from his home directory/home/bobusingthecommand: java-classpath/test:/home/bob/downloads/*.jargames.ChessBob’sCLASSPATHisset(atlogintime)to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?()
A./test/Chess.class
B./home/bob/Chess.class
C./test/games/Chess.class
D./usr/lib/games/Chess.class
E./home/bob/games/Chess.class
F.inside jarfile/opt/java/lib/Games.jar(withacorrectmanifest)
G.inside jarfile/home/bob/downloads/Games.jar(withacorrectmanifest) -
多项选择题
package com.company.application; public class MainClass{ public static void main(String[]args){} } And Main Class exists in the/apps/com/company/application directory.Assume the CLASSPATH environment variable is set to“.”(currentdirectory).Which two java commands entered at the command line will run MainClass()
A.java MainClass if run from the/apps directory
B.javacom.company.application.MainClass if run from the/apps directory
C.java-classpath/appscom.company.application.MainClass if run fro many directory
D.java-classpath.MainClass if run fromt he/apps/com/company/application directory
E.java-classpath/apps/com/company/application:.MainClass if run from the/apps directory
F.javacom.company.application.MainClassifrunfromthe/apps/com/company/application directory -
多项选择题
A developer is creating a class Book that needs to access class Paper.The Paper class is deployed in a JARnamedmyLib.jar.Whichthree,taken independently,will allow the developer to use the Paper class while compiling the Book class?()
A.The JAR fileis located at$JAVA_HOME/jre/classes/myLib.jar.
B.The JAR fileis located at$JAVA_HOME/jre/lib/ext/myLib.jar.
C.TheJ AR fileis located at/foo/myLib.jar and aclasspath environment variable is set that includes /foo/myLib.jar/Paper.class.
D.The JAR fileis located at/foo/myLib.jar and a classpath environment variable is set that includes/foo/myLib.jar.
E.The JAR file is located at/foo/myLib.jar and the Book class is compiled using javac-cp/foo/myLib.jar/Paper Book.java.
F.The JAR file is located at/foo/myLib.jar and the Book class is compiled using javac-classpath/foo/myLib.jar Book.java.
