java期末考试例题,请高手帮帮忙写下代码!谢谢了!
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共4个回答
热心网友
public class Jxcomputer{
public static void main(String [] args){
Js js = new Js(10,9,2);
System.out.println("面积:"+js.area());
System.out.println("周长:"+js.sjlength());
System.out.println("面积(带参):"+js.area(js.getA(), js.getB(), js.getC()));
System.out.println("周长(带参):"+js.sjlength(js.getA(), js.getB(), js.getC()));
}
}
class Js {
private int a;
private int b;
private int c;
public Js(int a, int b , int c){
this.a = a;
this.b = b;
this.c = c;
}
//无参的
int area(){
return (this.a + this.b + this.c)/2;
}
int sjlength(){
return (this.a + this.b + this.c);
}
//有参的
int area(int a, int b , int c){
return (a + b + c)/2;
}
int sjlength(int a, int b , int c){
return (a + b + c);
}
public int getA() {
return a;
}
public void setA(int a) {
this.a = a;
}
public int getB() {
return b;
}
public void setB(int b) {
this.b = b;
}
public int getC() {
return c;
}
public void setC(int c) {
this.c = c;
}
}
热心网友
// sj.java
public class sj {
private double a;
private double b;
private double c;
public sj(double a,double b,double c){
this.a = a;
this.b = b;
this.c = c;
}
public double getA() {
return a;
}
public double getB() {
return b;
}
public double getC() {
return c;
}
public double area(){
// return Math.sqrt(Math.abs(2*a*a*b*b+2*a*a*c*c+2*b*b*c*c-a*a*a*a-b*b*b*b-c*c*c*c)) / 4;
return (a + b + c) / 2
}
public double sjlength(){
return a + b + c;
}
}
// jxcomputer.java
public class jxcomputer {
public static void main(String[] args) {
sj sjObj = new sj(3, 6, 8);
double area = sjObj.area();
double leangth = sjObj.sjlength();
System.out.println(area);
System.out.println(leangth);
}
}
热心网友
三角形面积公式： 其中s=(a+b+c)/2
你的这个公式好像有问题哦。。。
是想写海*式的吧？
热心网友
楼上有没有考虑输入的三个数之后.这个三角形成立吗?
a+b>c && a-b<c
