Tag: technology

package testswitch; public class TestSwitch4 { public static void main(String[] args) { int x = 2; switch (x) { default: System.out.println("Default"); case 3: System.out.println("I am in 3"); case 1: System.out.println("I am in 1"); } } }

package testswitch; public class TestSwitch5 { public static void main(String[] args) { char a = 'a'; switch (a) { default: System.out.println("I am in default"); break; case 'a': System.out.println("I am in a"); break; } } }

Given: 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.printIn("x = " + ++x); } } } What is the result?

Given: class CardBoard { Short story = 5; CardBoard go(CardBoard cb) { cb = null; return cb; } public static void main(String[] args) { CardBoard c1 = new CardBoard(); CardBoard c2 = new CardBoard(); CardBoard c3 = c1.go(c2); c1 = null; // do Stuff } } When // doStuff is reached, how many objects are eligible for GC?

Given: class Alien { String invade(short ships) { return "a few"; } String invade(short... ships) { return "many"; } } class Defender { public static void main(String [] args) { System.out.println(new Alien().invade(7)); } } What is the result?

Given: 1. class Dims { 2. public static void main(String[] args) { 3. int[] [] a = {{1,2,}, {3,4}}; 4. int[] b = (int []) a [1] ; 5. Object o1 = a; 6. int[] [] a2 = (int[] []) o1; 7. int[] b2 = (int []) o1; 8. System.out.println(b[1]); 9. } } What is the result?

Given: 1. class Bigger { 2. public static void main(String[] args) { 3. // insert code here 4. } 5. } 6. class Better { 7. enum Faster {Higher, Longer}; 8. } Which, inserted independently at line 3, will compile? (Choose all that apply.)