任何一个能帮助我...如果你发现我的错误,请通知我。给我的解决方案。
class Testconstructor
{
int x,y;
Testconstructor(int a, int b)
{
x=a;
y=b;
}
/**Testconstructor()
{
x=10;
y=20;
}*/
int areaa()
{
int ar= 1/2*x*y;
System.out.println("Area of triangle :"+ar);
return ar;
}
}
class dTestconstructor
{
public static void main(String args[])
{
int ar;
Testconstructor a1 = new Testconstructor(10,20);
//a1.Testconstructor(10,20);
//ar=a1.areaa();
System.out.println("Area of triangle :"+ a1.areaa());
}
}