Exam 803 – Sample Questions 1. Given: public class Calculator { int num = 100; public void calc(int num) { this.num = num * 10; } public void printNum(){ System.out.println(num); } public static void main(String[] args) { Calculator obj = new Calculator (); obj.calc(2); obj.printNum(); } } What is the result? A) 20 B) 100 C) 1000 D) 2 2. Given: public class MyStuff { String name; MyStuff(String n) { name = n; } public static void main(String[] args) { MyStuff m1 = new MyStuff("guitar"); MyStuff m2 = new MyStuff("tv"); System.out.println(m2.equals(m1)); } public boolean equals(Object o) { MyStuff m = (MyStuff) o; if (m.name != null) { return true; } return false; } } What is the result? A) The output is true and MyStuff fulfills the Object.equals() contract. B) The output is false and MyStuff fulfills the Object.equals() contract. C) The output is true and MyStuff does NOT fulfill the Object.equals() contract. D) The output is false and MyStuff does NOT fulfill the Object.equals() contract. 3. Given: import java.util.*; public class App { public static void main(String[] args) { List p = new ArrayList(); p.add(7); p.add(1); p.add(5); p.add(1); p.remove(1); System.out.println(p ...
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