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- 2024-05-04 17:11
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java求周长和面积
package shape1;
public class shape {//定义类型和数据名称用floaat类型
private String name;
private float changcore;
private float guanscore;
static String shapename;
private float average;
void stexx(String name,float changcore, float guanscore) {//构造方法实参
thisname=name;
thischangcore=changcore;
thisguanscore=guanscore;
}
shape(){//无参数构造方法
}
shape(String name,float changcore, float guanscore) {实参4
thisname=name;
thischangcore=changcore;
thisguanscore=guanscore;
}
void count() {//定义周长的方法
//
thisaverage=(guanscore+guanscore)*2;
}
float getaverage() {
return average;//获取值
}
String dengji() {
String str="";
if(average<20)//用if嵌套
str="";
str="";
return str;//返回值
}
}
package shape1;
import shape1shape;//导入shape包
public class test {
public static void main(String[] args) {
shapeshapename=":";//静态变量赋值
shape s1=new shape();//创建对象
s1stexx("周长",10,10);
s1count();//调用周长
Systemoutprintln("正方形的长"+s1shapename +s1getaverage()+s1dengji());//打印第一个的对象
Systemoutprintln(s1getaverage()+s1getaverage()/2+"周长");
shape s2=new shape();
s2stexx("面积",20,20);
Systemoutprintln("正方形的宽"+s1shapename +s1getaverage()+s1dengji());
Systemoutprintln(s1getaverage()+s2getaverage()*2+"面积");//正方形的面积
}
}
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