please solve all questions and just give answer no explanations needed...thank you

A Moving to the next question prevents changes to this answer. Question 12 For the following code, what would be the value of str[2]? string0 str = {"abc", "def", "ghi", "jk1"}; O "def" a reference to the String object containing "def" O a reference to the String object containing "ghi" O "ghi" A Moving to the next question prevents changes to this answer. A Moving to the next question prevents changes to this answer. Question 13 refers to combining data and code into a single object. Data hiding O Encapsulation The constructor Abstraction ho A Moving to the next question prevents changes to this answer. Moving to the next Question prevents changes to this answer Question 14 Which symbol indicates that a member is public in a UML diagram? Mong to the next question prevents changes to this answer A Moving to the next question prevents changes to this answer. Question 15 Which symbol indicates that a member is private a UML diagram? A Moving to the next question prevents changes to this answer. A Moving to the next question prevents changes to this answer. Question 16 To indicate the data type of a variable in a UML diagram, you enter o the class name followed by the variable name followed by the data type o the variable name followed by a colon and the data type o the variable name followed by the data type O the data type followed by the variable name A Moving to the next question prevents changes to this answer. ompletion Status: A Moving to the next question prevents changes to this answer. Question 17 key word in their headers. Instance methods do not have the private o static public protected A Moving to the next question prevents changes to this answer. Question 18 Methods that operate on an object's fields are called O public methods O private methods instance methods instance variables OO A Moving to the next question prevents changes to this answer. public class Order { private int orderNum; private double orderAmount; private double orderDiscount; public Order (int orderNumber, double orderAmt, double orderDisc) { orderNum = order Number; orderAmount = orderAmt; orderDiscount = orderDisc; } public double finalOrderTotal() return orderAmount orderAmount * orderDiscount; 3 } public class CustomerOrder public static void main(String[] args) { Order order; int orderNumber = 1234; double orderAmt = 580.00; double orderDisc = .1; order = new Order (orderNumber, orderAmt, orderDisc); double finalAmount = order. finalorderTotal(); System.out.printf("Final order amount = $$,.2f ", finalAmount); Oo 528.00 580.00 522.00 There is no value because the object, order, has not been created. Question 20 For the following code, which statement is not true? public class Sphere { private double radius; public double x; private double y; private double z; ho ) The radius, x, y, and z fields are members of the Sphere class. The radius field is not available to code written outside the Sphere class. The z field is available to code written outside the Sphere class. The x field is available to code that is written outside the Sphere class. A Moving to the next question prevents changes to this answer. L A Moving to the next question prevents changes to this answer. Question 21 Assume that the following method header is for a method in class A. public void displayValue (int value) Assume that the following code segments appear in another method, also in class A. Which contains a legal call to the displayValue method? int x = 7; displayValue (x); int x = 7; O displayValue(int x); int x = 7; O void displayValue (x); int x = 7; O displayValue (x)