Question

LE 7.1

Create a separate class called Family. This class will have NO main().

Insert a default constructor in the Family class. This is a method that is empty and its header looks like this: public NameOfClass()

Except, for the main(), take all the other methods in LE 6.2 and put them in the Family class.

Transfer the class variables from LE 6.2 to Family.

Strip the word static from the class variables and the method headers in the Family class.

Cut and paste the main() from LE 6.2 into your program file for LE 7.1.Create an object of the family class.

Format:  NameOfClass objectName = new NameOfClass();

Use that object for the method calls in the main().

Format:  objectName.methodName()

Make sure both classes are in the same directory.

To run both programs, you must run the class with the main().

-----------------------------------------------

Here is LE62

import java.util.Scanner;

public class LE62
{
  
public static int arraySize(Scanner inp)
{
  
System.out.printf("How many family members in your immediate family including yourself?");
  
return Integer.parseInt(inp.next());
  
}//End public static int arraySize
  
public static String[] setNames(int size, Scanner input)
{
  
String[] familyNames = new String[size];
  
for (int i = 0; i < size; i++)
{
  
System.out.printf("Enter family member %d : ", (i + 1));
  
familyNames[i] = input.next();
  
}//End for
  
return familyNames;
  
}//End public static String[] setNames
  
public static String[] setRoles(String[] familyNames, Scanner input)
{
  
String[] familyRoles = new String[familyNames.length];
  
for (int i = 0; i < familyNames.length; i++)
{
  
System.out.printf("What relationship is %s to you? ", familyNames[i]);
  
familyRoles[i] = input.next();
  
}//End For
  
return familyRoles;
  
}//End public static String[] setRoles
  
public static Integer[] setAges(String[] familyNames, Scanner input)
{
  
Integer[] familyAges = new Integer[familyNames.length];
  
for (int i = 0; i < familyNames.length; i++)
{
  
System.out.printf("How old is %s? ", familyNames[i]);
  
familyAges[i] = Integer.parseInt(input.next());
  
}
  
return familyAges;
  
}//End public static Integer
  
public static void printFamilyInfo(String[] familyNames, String[] familyRoles, Integer[] familyAges)
{
  
System.out.printf("%nMY FAMILY%n");
  
for (int i = 0; i < familyNames.length; i++)
{
  
System.out.printf("%nName: %s", familyNames[i]);
  
System.out.printf("%nRole: %s", familyRoles[i]);
  
System.out.printf("%nAge: %d%n", familyAges[i]);
  
}//End for
  
}//End public static void printFamilyInfo
  
public static void main(String[] args)
{
  
Scanner input = new Scanner(System.in);
  
int size = arraySize(input);
  
String[] familyNames = setNames(size, input);
  
printFamilyInfo(familyNames, setRoles(familyNames, input), setAges(familyNames, input));
System.exit(0);
}//End Main
  
}//End Class

-------Sample out put--------------

How many family members in your immediate family including yourself? 4

Enter family member 1: Fred
Enter family member 2: Wilma
Enter family member 3: Pebbles

Enter family member 4: Bambam

What relationship is Fred to you? Father

What relationship is Wilma to you? Mother

What relationship is Pebbles to you? Self

What relationship is Bambam to you? Brother

How old is Fred? 45

How old is Wilma? 43
How old is Pebbles? 18
How old is Bambam? 15

MY FAMILY

Name: Fred

Role: Father

Age: 45

Name: Wilma

Role: Mother

Age: 43

Name: Pebbles

Role: Self

Age: 18

Name: Bambam

Role: Brother

Age: 15

Answer 1

Family.java

package le6.project; import java.util.Scanner; public class Family { private String[] familyNames; private String[] familyRoles; private Integer[] familyAges; public Family() { } public int arraySize(Scanner inp) { System.out.printf("How many family members in your immediate family including yourself ? "); return Integer.parseInt(inp.nextLine()); }//End public static int arraySize public String[] setNames(int size, Scanner input) { familyNames = new String[size]; for (int i = 0; i < size; i++) { System.out.printf("Enter family member %d : ", (i + 1)); familyNames[i] = input.nextLine(); }//End for return familyNames; }//End public static String[] setNames public String[] setRoles(String[] familyNames, Scanner input) { familyRoles = new String[familyNames.length]; for (int i = 0; i < familyNames.length; i++) { System.out.printf("What relationship is %s to you? ", familyNames[i]); familyRoles[i] = input.nextLine(); }//End For return familyRoles; }//End public static String[] setRoles public Integer[] setAges(String[] familyNames, Scanner input) { familyAges = new Integer[familyNames.length]; for (int i = 0; i < familyNames.length; i++) { System.out.printf("How old is %s? ", familyNames[i]); familyAges[i] = Integer.parseInt(input.nextLine()); } return familyAges; }//End public static Integer public void printFamilyInfo(String[] familyNames, String[] familyRoles, Integer[] familyAges) { System.out.printf("%nMY FAMILY%n"); for (int i = 0; i < familyNames.length; i++) { System.out.printf("%nName: %s", familyNames[i]); System.out.printf("%nRole: %s", familyRoles[i]); System.out.printf("%nAge: %d%n", familyAges[i]); }//End for }//End public static void printFamilyInfo public static void main(String[] args) { Scanner input = new Scanner(System.in); Family myFamily = new Family(); // creating Family object int size = myFamily.arraySize(input); String[] familyNames = myFamily.setNames(size, input); myFamily.printFamilyInfo(familyNames, myFamily.setRoles(familyNames, input), myFamily.setAges(familyNames, input)); System.exit(0); } }

OUTPUT

8: Problems @Javadoc 다 Declaration - Console X B Progress e <terminated> Family [Java Application] C:Program FilesJava\jre1.8.0_451bin javaw.exe (07-Aug-2017 How many family members in your immediate family including yourself 3 U Enter family member 1 Papa Enter family member 2 mom Enter family member 3 me What relationship is Papa to you? Father Son What relationship is mom to you? mother son What relationship is me to you? myself How old is Papa? 50 How old is mom? 48 How old is me? 23 MY FAMILY Name: Papa Role: Father Son Age: 50 Name: mom Role: mother son Age: 48 Name: me Role: myself Age: 23