第十次作业
1 定义三个方法:getArea()求面积、getPer()求周长,showAll()分别在控制台输出长、宽、面积、周长。
package five; public class text1 { int lenght; int width; public void area() { System.out.println(lenght*width); } public void zc(){ System.out.println(2*(lenght+width)); } public void showall(){ System.out.println("宽"+width ); System.out.println("长"+lenght); System.out.println("面积"); area(); System.out.println("周长"); zc(); } } }
2 有2个属性:长length、宽width
package five;
import java.util.Scanner; public class text2 { public static void main(String[] args) {
Rectangle a = new Rectangle(); Scanner input = new Scanner(System.in); System.out.print("请输入长:"); a.length = input.nextInt(); System.out.print("请输入宽:"); a.width = input.nextInt(); a.showAll();
}
}