Cuestionario 3. 1Z0-808

Given the code fragment:

LocalDate date1 = LocalDate.now();
LocalDate date2 = LocalDate.of(2014, 6, 20);
LocalDate date3 = LocalDate.parse("2014-06-20", DateTimeFormatter.ISO_DATE);
System.out.println("date1 = " + date1);
System.out.println("date2 = " + date2);
System.out.println("date3 = " + date3);

Assume that the system date is June 20, 2014. What is the result?

Given the code fragment:

public class Test {
    public static void main(String[] args) {
        StringBuilder sb1 = new StringBuilder();
        String str1 = sb1.toString();
        // insert code here
        System.out.print(str1 == str2);
    }
}

Which code fragment, when inserted at line 9, enables the code to print true?

Given the code fragment:

public class Test {
 
    static int count = 0;
    int i = 0;
 
    public void changeCount() {
        while (i < 5) {
            ++i;
            count++;
        }
    }
 
    public static void main(String[] args) {
        Test check1 = new Test();
        Test check2 = new Test();
        check1.changeCount();
        check2.changeCount();
        System.out.println(check1.count + " : " + check2.count);
    }
}

What is the result?

Given the code fragment:

double discount = 0;
int qty = Integer.parseInt(args[0]);
// line n1;

And given the requirements:

If the value of the qty variable is greater than or equal to 90, discount = 0.5
If the value of the qty variable is between 80 and 90, discount = 0.2

Which two code fragments can be independently placed at line n1 to meet the requirements?