need basic default constructor , and shoed an example too
s0. write the class Battery and it has
s1. a data for the battery capacity (that is similar to myBalance
of the BankAccount class.)
s2. a parameterized constructor: public Battery(double
amount)
s3. a drain mutator
s4. a change mutator
s5. a getRemainingCapacity accessor
Need to run this tester -
public class BatteryTester{
public static void main(String[] args) {
Battery autoBattery = new Battery(2000); //call default
constructor
System.out.println("1. battery capacity is " +
autoBattery.getRemainingCapacity() + " mAh.");
autoBattery.drain(100);
System.out.println("2. battery capacity is " +
autoBattery.getRemainingCapacity() + " mAh.");
autoBattery.charge();
System.out.println("3. battery capacity is " +
autoBattery.getRemainingCapacity() + " mAh.");
}
}
Similar Example-
/**
BankAccount class
*/
public class BankAccount { //s0
private double myBalance; //s1
public BankAccount() {myBalance = 0.00;}//s2
/**
My parameterizedconstructor
@param initial amount
*/
public BankAccount(double pAmount){myBalance =
pAmount;} //s3
/**
My mtator to deposit $$
@param deposit amount
*/
public void deposit(double pAmount){myBalance +=
pAmount;} //s4
/**
My accessor getBalnace
@return balance
*/
public double getBalance(){return myBalance;} //s5
If you have any problem with the code feel free to comment.
Program
class Battery {
// instance variables
private double capacity;
private double fullCapacity;// for holding full
capacity of battery
public Battery(double capacity) {//
constructor
this.capacity = capacity;
fullCapacity = capacity;
}
public void drain(double i) {
if (i < capacity)// checking if
the drainage value is less than the capacity
capacity -=
i;
else// turn capacity to zero
capacity =
0;
}
public void charge() {
capacity = fullCapacity;// charging
the capacity to fullCapacity
}
public double getRemainingCapacity() {
return capacity;// returning
capacity value
}
}
public class Test {// driver class
public static void main(String[] args) {
Battery autoBattery = new
Battery(2000); // call default constructor
System.out.println("1. battery
capacity is " + autoBattery.getRemainingCapacity() + "
mAh.");
autoBattery.drain(100);
System.out.println("2. battery
capacity is " + autoBattery.getRemainingCapacity() + "
mAh.");
autoBattery.charge();
System.out.println("3. battery
capacity is " + autoBattery.getRemainingCapacity() + "
mAh.");
}
}
Output
need basic default constructor , and shoed an example too s0. write the class Battery and...
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