int prise;
String name;
int site;
int num;
/** Creates a new instance of test */
public test() {
}
public test(int pr,int si,int nu,String na){
if(nu>=0){
prise=pr;
site=si;
name=na;
num=nu;
}
else System.out.println("error!please reset the product number.");
}
int getNum(){
System.out.println(num);
return num;}
int addNum(int j){
num=num+j;
System.out.println(num);
return num;
}
int subNum(int j){
if(j<=num) {
num=num-j;
System.out.println(num);
}
else System.out.println("error!");
return num;
}
public static void main(String [] argr){
int i=4;
int n=5;
int h=9;
String s="sjioajgj";
test te=new test(n,i,h,s);
te.getNum();
te.addNum(i);
te.getNum();
te.subNum(n);
te.getNum();
}
}