绝对经典Java笔试题(英文)VIP免费

Questions Question 1) Which of the following lines will compile without warning or error. 1) float f=1.3; 2) char c="a"; 3) byte b=257; 4) boolean b=null; 5) int i=10; Answer to Question 1 Question 2) What will happen if you try to compile and run the following code public class MyClass { public static void main(String arguments[]) { amethod(arguments); } public void amethod(String[] arguments) { System.out.println(arguments); System.out.println(arguments[1]); } } 1) error Can't make static reference to void amethod. 2) error method main not correct 3) error array must include parameter 4) amethod must be declared with String Answer to Question 2 Question 3) Which of the following will compile without error 1) import java.awt.*; package Mypackage; class Myclass {} 2) package MyPackage; import java.awt.*; class MyClass{} 3) /*This is a comment */ package MyPackage; import java.awt.*; class MyClass{} Answer to Question 3 Question 4) A byte can be of what size 1) -128 to 127 2) (-2 power 8 )-1 to 2 power 8 3) -255 to 256 4)depends on the particular implementation of the Java Virtual machine Answer to Question 4 Question 5) What will be printed out if this code is run with the following command line? java myprog good morning public class myprog{ public static void main(String argv[]) { System.out.println(argv[2]); } } 1) myprog 2) good 3) morning 4) Exception raised: "java.lang.ArrayIndexOutOfBoundsException: 2" Answer to Question 5 Question 6) Which of the following are keywords or reserved words in Java? 1) if 2) then 3) goto 4) while 5) case Answer to Question 6 Question 7) Which of the following are legal identifiers 1) 2variable 2) variable2 3) _whatavariable 4) _3_ 5) $anothervar 6) #myvar...