构建一个三角形类。要求如下：1成员变量：三条边.2成员函数:显示三条边的长度。并能够初始化该类的一个边长为3的等边三角形
//下面是我写的一段代码,能运行,但似乎和题目不符,只能直接输出边长为3的等边三角形,要怎么改才能符合题目要求呢?
import java.util.*;public class TraingleTest
{
public static void main(String[] args)
{
Traingle e=new Traingle(3,3,3); System.out.println("第一条边长aa为:"+e.getAa()+",第二条边长bb为:"+e.getBb()+",第三条边长cc为:"+e.getCc());
}
}class Traingle
{
public Traingle(int ia,int ib,int ic)
{
aa=ia;
bb=ib;
cc=ic;
}public int getAa()
{
return aa;
}
public int getBb()
{
return bb;
}
public int getCc()
{
return cc;
}
private int aa;
private int bb;
private int cc;
}
//下面是我写的一段代码,能运行,但似乎和题目不符,只能直接输出边长为3的等边三角形,要怎么改才能符合题目要求呢?
import java.util.*;public class TraingleTest
{
public static void main(String[] args)
{
Traingle e=new Traingle(3,3,3); System.out.println("第一条边长aa为:"+e.getAa()+",第二条边长bb为:"+e.getBb()+",第三条边长cc为:"+e.getCc());
}
}class Traingle
{
public Traingle(int ia,int ib,int ic)
{
aa=ia;
bb=ib;
cc=ic;
}public int getAa()
{
return aa;
}
public int getBb()
{
return bb;
}
public int getCc()
{
return cc;
}
private int aa;
private int bb;
private int cc;
}
{
public sanjiaoxing(int one,int two,int three)
{
a=one;
b=two;
c=three;
}
public void displayinfo()
{
System.out.println("这个三角形的三边为: "+a+","+b+","+c);
}
private int a;
private int b;
private int c;
}public static void main(String[] args)
{
sanjiaoxing equal after al=new sanjiaoxing(3,3,3);
sanjiaoxing qita=new sanjiaoxing();
equallater al displayinfo=qita.dispalyinfo();
}
private int a,b,c;
public traingle(){
a=3;
b=3;
c=3;}
public void traingle(int a,int b,int c){
this.a=a;
this.b=b;
this.c=c;}
public void setA(int a){
this.a=a;}
public void setB(int b){
this.b=b;}
public void setC(int c){
this.c=b;}
public int getA(){
return a;
public int getB(){
return b;
public int getC(){
return c;}
}
public void output(){
System.out.println("a="+a+",b="+b+",c="+c);}
这句已经定义死了显示的三条边是3，3，3；
还是不知道楼主想要说的什么意思
重新写了一个给你：package question.xz;public class Traingle {
private int a, b, c; public Traingle() {
a = 3;
b = 3;
c = 3;
System.out.println("初始化三角形，三边长均为3");
} public void setABC(int a, int b, int c) {
if (panduan(a, b, c)) {
this.a = a;
this.b = b;
this.c = c;
System.out.println("成功设置三角形三边a="+a+",b="+b+",c="+c);
}
} public void setA(int a) {
if (panduan(a, b, c)){
this.a = a;
System.out.println("成功设置a边为"+a);
}
} public void setB(int b) {
if (panduan(a, b, c)){
this.b = b;System.out.println("成功设置b边为"+b);} } public void setC(int c) {
if (panduan(a, b, c)){
this.c = c;System.out.println("成功设置c边为"+c);} } public int getA() {
return a;
} public int getB() {
return b;
} public int getC() {
return c;
} public void outputABC() {
System.out.println("三角形三边长分别为：a=" + a + ",b=" + b + ",c=" + c);
} public boolean panduan(int a, int b, int c) {
int i;
if (a > b) {
i = a;
a = b;
b = i;
}
if (b > c) {
i = b;
b = c;
c = i;
}
if (c >= a + b) { System.out.println("数据不正确，"+a+","+b+","+c+"无法构成三角形，原始数据(a="+this.a+",b="+this.b+",c="+this.c+")未做修改！");
return false;
} else
return true;
}
}
调试类：package question.xz;public class rreeds {
public static void main(String[] args) {
Traingle sanjiao = new Traingle();
sanjiao.setABC(13, 14, 15);
sanjiao.setA(7);
sanjiao.setB(8);
sanjiao.setC(9);
sanjiao.setABC(4, 5, 15);
sanjiao.outputABC();
}
}
输出结果：
初始化三角形，三边长均为3。
成功设置三角形三边a=13,b=14,c=15
成功设置a边为7
数据不正确，7,8,15无法构成三角形，原始数据(a=7,b=14,c=15)未做修改！
成功设置c边为9
数据不正确，4,5,15无法构成三角形，原始数据(a=7,b=14,c=9)未做修改！
三角形三边长分别为：a=7,b=14,c=9