class Trangle
{
private float a,b,c,cycle,area;
boolean bTrangle;
public void setA(float a)
{
a = a;
}
public void setB(float b)
{
b = b;
}
public void setC(float c)
{
c = c;
}
public float getCycle()
{
return a+b+c;
}
public float getArea()
{
area = ....;
return area;//自己用公式算
}
public boolean isTrangele()
{
if()....
bTrangle = ..
return bTrangle;
}
}
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