Tag: programming languages

import static java.lang.System.*; class _ { static public void main(String... _A_V) { String $ = ""; for(int x=0; ++x < _A_V.length; ) $ += _A_V[x]; out.println($); } } And the command line: java _ - A .

1. class X { void do1() { } } 2. class Y extends X { void do2() { } } 3. 4. class Chrome { 5. public static void main(String [] args) { 6. X x1 = new X(); 7. X x2 = new Y(); 8. Y y1 = new Y(); 9. // insert code here 10. } 11. } Which, inserted at line 9, will compile? (Choose all that apply.)

1. class Dog { } 2. class Beagle extends Dog { } 3. 4. class Kennel { 5. public static void main(String [] arfs) { 6. Beagle b1 = new Beagle(); 7. Dog dog1 = new Dog(); 8. Dog dog2 = b1; 9. // insert code here 10. } 11. } Which, inserted at line 9, will compile? (Choose all that apply.)

class Scoop { static int thrower() throws Exception { return 42; } public static void main(String [] args) { try { int x = thrower(); } catch (Exception e) { x++; } finally { System.out.println("x = " + ++x); } } } What is the result?

class Fizz { int x = 5; public static void main(String[] args) { final Fizz f1 = new Fizz(); Fizz f2 = new Fizz(); Fizz f3 = FizzSwitch(f1,f2); System.out.println((f1 == f3) + " " + (f1.x == f3.x)); } static Fizz FizzSwitch(Fizz x, Fizz y) { final Fizz z = x; z.x = 6; return z; } } What is the result?