i've being trying to fix the error in my code for quite some time but am unable to resolve one or two of the errors like expected primary-expression before 'public'
main.cpp:211:22: error: expected ';' before 'public'
main.cpp:216:23: error: expected '}' before 'else'
i am a beginner in programming
# include<iostream>
#include<fstream>
#include<sstream>
using namespace std;
template <class A>
class Array
{
int siz;
public:
A *a;
void create_array(int cap)
{
if(cap>0)
{
a=new A[cap];
siz=cap;
}
else
{
cout<<"the size is wrong";
}
}
void store(A values,int index)
{
if(index<siz&&index>=0)
a[index]=values;
else
cout<<"invalid index";
}
A retrieve(int index)
{
if(index<siz&&index>=0)
return a[index];
else
cout<<"inavalid index";
}
};
template <class S>
class stacks
{
Array <S>obj;
int top;
int capacity;
public:
stacks()
{
top=0;
capacity=0;
}
void create_stack(int s)
{
capacity=s;
top=0;
obj.create_array(s);
}
void push(S value)
{
if(!isFull())
{
obj.store(value,top);
top+=1;
}
else
cout<<"stack overflow";
}
S pop()
{
if(top!=0)
{
top-=1;
return obj.retrieve(top);
}
else
cout<<"stack underflow";
}
bool isFull()
{
if(top==capacity)
return true;
else
return false;
}
bool isEmpty()
{
if(top==0)
return true;
else
return false;
}
};
template<class Q>
class queues
{
int cap;
int head,tail;
Array<Q>obj;
void create_queue(int size)
{
if(size>0)
{
cap=size;
obj.create_array(size);
head=0;
tail=0;
}
else
cout<<"invalid size"<<endl;
}
bool isEmpty()
{
if(head==0&&tail==0)
return true;
return false;
}
bool isFull()
{
if(tail==cap)
return true;
return false;
}
void enqueue(Q value)
{
if(head==0&&!isFull())
{
obj.store(value,tail);
tail+=1;
}
else if(!isFull())
{
int i;
while(head!=0)
{
for(i=head;i<tail;i++)
obj.a[i-1]=obj.a[i];
head-=1;
tail-=1;
}
obj.store(value,tail);
tail+=1;
}
else
cout<<"queue full"<<'\n';
}
Q dequeue()
{
if(!isEmpty())
{
Q val=obj.retrieve(head);
head+=1;
return val;
}
else
{
cout<<"queue empty"<<'\n';
}
}
};
//template<class T>
class fileinp
{
public:
void readme()
{
ifstream inf("input.txt");
string strinput;
string adt;
int value;
while(!inf.eof())
{
inf>>strinput;
if(strinput.compare("stack")==0)
{
adt="stack";
inf>>strinput;
// public:
if(strinput.compare("int")==0)
{
stacks<int> obj1;
}
else
if(strinput.compare("float")==0)
{
stacks <float> obj1;
}
else
if(strinput.compare("double")==0)
{
stacks <double> obj1;
}
else
if(strinput.compare("char")==0)
{
stacks<char> obj1;
}
else
{
stacks<int> obj1;
}
}
else
{
if(strinput.compare("queue")==0)
{
adt="queue";
inf>>strinput;
public:
if(strinput.compare("int")==0)
{
queues<int> obj1;
}
else if(strinput.compare("float")==0)
{
queues<float> obj1;
}
else if(strinput.compare("double")==0)
{
queues<double> obj1;
}
else if(strinput.compare("char")==0)
{
queues<char> obj1;
}
else
{
queues<int> obj1;
}
}
}
};
while(!inf.eof())
{
inf>>strinput;
if(adt.compare("stack")==0&&strinput.compare("push")==0)
{
inf>>strinput;
istringstream (strinput) >> value;
obj1.push(value);
}
else if(adt.compare("stack")==0&&strinput.compare("pop")==0)
{
cout<<"the value popped is"<<obj1.pop();
}
else if(adt.compare("queue")==0&&strinput.compare("enqueue")==0)
{
inf>>strinput;
istringstream(strinput) >> value;
obj1.enqueue(value);
}
else if(adt.compare("queue")==0&&strinput.compare("dequeue")==0)
{
cout<<"the value dequeued is"<<obj1.dequeue();
}
else
inf>>strinput;
}
}
};
int main()
{
int s;
stacks <int>obj2;
cin>>s;
cout<<"size is "<<s<<'\n';
obj2.create_stack(s);
obj2.push(10);
obj2.push(5);
int k=obj2.pop();
cout<<k;
fileinp obj;
obj.readme();
return 0;
};
