public static void main(String[] args) {
int N=5
for(int i=1i<=Ni++){
for(int j=1j<=N-ij++){
System.out.print(" ")
}
for(int j=1j<=2*i+1j++){
System.out.print("*")
}
System.out.println()
}
}
}
运行结果
class Tixing //梯形类{
private float Height//高
private float upBotton//上底
private float downBotton//下底
public Tixing(float Height,float upBotton,float downBotton)//构造方法
{
this.Height=Height
this.upBotton=upBotton
this.downBotton=downBotton
}
public float getTixingArea() //计算梯形面积
{
return (upBotton+downBotton)*height/2
}
}
public class Start
{
public static void main(String[] args)
{
Tixing t=new Tixing(30,20,50)//构造
System.out.println("梯形的面积是:"+t.getTixingArea())//打印输出
}
}
