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refer to image (java) a.Write a Java statement that declares myObject1 to be a MyClass object and initializes its instance variable x to 5. b. Write a Java statement that declares myObject2 to be a MyClass object and initializes its instance variable x to 7. c. Identify each of the following statements as either valid or invalid (tell why it is invalid). Assume that myObject1 and myObject2 are declared as in parts (a) and (b).   myObject1.MyClass( );             myObject2.setX(50);                MyClass.printCount( );           MyClass.printX( );                    MyClass.count++;

refer to image (java) a.Write a Java statement that declares myObject1 to be a MyClass object and initializes its instance variable x to 5. b. Write a Java statement that declares myObject2 to be a MyClass object and initializes its instance variable x to 7. c. Identify each of the following statements as either valid or invalid (tell why it is invalid). Assume that myObject1 and myObject2 are declared as in parts (a) and (b).   myObject1.MyClass( );             myObject2.setX(50);                MyClass.printCount( );           MyClass.printX( );                    MyClass.count++;

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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refer to image (java)

a.Write a Java statement that declares myObject1 to be a MyClass object and

initializes its instance variable x to 5.

b. Write a Java statement that declares myObject2 to be a MyClass object and

initializes its instance variable x to 7.

c. Identify each of the following statements as either valid or invalid (tell why it is invalid). Assume that myObject1 and myObject2 are declared as in parts (a) and (b).

 

myObject1.MyClass( );          

 

myObject2.setX(50);             

 

MyClass.printCount( );        

 

MyClass.printX( );                 

 

MyClass.count++;                  

 

 

2. Consider the following definition of the class MyClass. public class MyClass { private int x; private static int count; //default constructor public MyClass() {...} Ilconstructor with a parameter public MyClass (int a) {...} //method to set the value of x public void setX(int a) {...} //method to output x public void printX) {.} I/method to output count public static void printCount( ) {...} //method to increment count public static void incrementCount( ) {...} }
Transcribed Image Text:2. Consider the following definition of the class MyClass. public class MyClass { private int x; private static int count; //default constructor public MyClass() {...} Ilconstructor with a parameter public MyClass (int a) {...} //method to set the value of x public void setX(int a) {...} //method to output x public void printX) {.} I/method to output count public static void printCount( ) {...} //method to increment count public static void incrementCount( ) {...} }
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