c++ 소멸자 사용에서 잘못된 부분을 짚어주세요.

#include <iostream>
#include <fstream>
 
class KSS{
private:
	int *class1;
	int *class2;
	int *class3;
	int *class4;
public:
	KSS(std::ifstream &inStream, int k, int n);
	~KSS();
 
};
 
int main(){
	std::ifstream inStream;
	inStream.open("input.txt");
	if(inStream.fail())
	{
		std::cerr<<"input file opening failed\n";
		exit(1);
	}
 
	int testCasesNum;
	inStream >> testCasesNum;
 
	int k , n;
 
	for(int i = 0 ; i < testCasesNum ; i++){
		inStream >> k >> n ;
		KSS kss(inStream, k, n);
                kss.~KSS();
	}
 
 
	return 0;
}
 
KSS::KSS(std::ifstream &inStream, int k, int n){
	class1 = new int[sizeof(int)*n];
	class2 = new int[sizeof(int)*n];
	class3 = new int[sizeof(int)*n];
	class4 = new int[sizeof(int)*n];
 
	for(int i = 0 ; i < n ; i++){
		inStream >> class1[i];
		std::cout<<class1[i]<<std::endl;
	}
	for(int i = 0 ; i < n ; i++){
		inStream >> class2[i];
		std::cout<<class2[i]<<std::endl;
	}
	for(int i = 0 ; i < n ; i++){
		inStream >> class3[i];
                std::cout<<class3[i]<<std::endl;
        }
	for(int i = 0 ; i < n ; i++){
		inStream >> class4[i];
		std::cout<<class4[i]<<std::endl;
	}
 
}
 
KSS::~KSS(){
	delete[] class1;
	delete[] class2;
	delete[] class3;
	delete[] class4;
}