class Set
{
private int n1,n2,n3;
public int sum()
{
int s=n1+n2+n3;
return s;
}
public double mean()
{
double m=sum()/3.0;
return m;
}
public void setData(int x,int y,int z)
{
n1=x;n2=y;n3=z;
}
}
class demo
{
public static void main(String args[])
{
Set a,b;
a=new Set();
b=new Set();
a.setData(4,5,7);
b.setData(10,20,25);
int z=a.sum()+b.sum();
System.out.println("Total sum is "+z);
System.out.println("Mean of b is "+b.mean());
}
}
Total Sum is 71 Mean of b is 18.333333