Answer:
Answer is in java language.
Explanation:
Java Code
a) Creating instance variable
public class Counter {
int counter;
int limit;
}
Code Explanation
create a public class and declare variables inside the class block. By doing this, it will create instance variable of that class.
b) Constructor
public Counter(int first, int second){
this.counter=first;
this.limit=second;
}
Code Explanation
Constructor are method having no return type and having exact name as Class name. Constructor are used to initialize the class instance before calling any other method.
c) Increment Method
public void increment(){
if(this.counter<this.limit){
counter++;
}
}
Code Explanation
void tells the compiler that there is nothing to return from current method. If block is checking the condition that if counter is less then the limit then increment the counter by 1.
d) Decrements Method
public void decrement(){
if(this.counter>0){
this.counter--;
}
}
Code Explanation
Decrement method will check if counter value is greater then 0 then decrement counter value by 1 in if block.
e) getValue method
public int getValue(){
return this.counter;
}
Code Explanation
getValue method will take no parameter as input and return the current counter value by using return statement.
Full Code Example
public class Counter {
int counter;
int limit;
public Counter(int first, int second){
this.counter=first;
this.limit=second;
}
public void increment(){
if(this.counter<this.limit){
counter++;
}
}
public void decrement(){
if(this.counter>0){
this.counter--;
}
}
public int getValue(){
return this.counter;
}
}
