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目录
1.补全构造方法
2.重写计算逻辑
有父类Base,内部定义了x、y属性。有子类Sub,继承自父类Base。子类新增了一个z属性,并且定义了calculate方法,在此方法内计算了父类和子类中x、y、z属性三者的乘积。请补全子类构造方法的初始化逻辑,使得该计算逻辑能够正确执行。
三个整数:x, y, z
三个整数的乘积:x*y*z
输入:1 2 3
输出:6
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while (scanner.hasNextInt()) {
int x = scanner.nextInt();
int y = scanner.nextInt();
int z = scanner.nextInt();
Sub sub = new Sub(x, y, z);
System.out.println(sub.calculate());
}
}
}
class Base {
private int x;
private int y;
public Base(){}
public Base(int x, int y) {
this.x = x;
this.y = y;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public void setX(int x)
{
this.x = x;
}
public void setY(int y)
{
this.y = y;
}
}
class Sub extends Base {
private int z;
public Sub(int x, int y, int z) {
//write your code here
super.setX(x);
super.setY(y);
this.z = z;
}
public int getZ() {
return z;
}
public int calculate() {
return super.getX() * super.getY() * this.getZ();
}
}
在父类Base中定义了计算方法calculate(),该方法用于计算两个数的乘积(X*Y)。请在子类Sub中重写该方法,将计算逻辑由乘法改为除法(X/Y)。注意,当分母为0时输出“Error”。
两个整数
两个整数的商(int类型,不考虑小数情况)
输入:6 2
输出:3
输入:1 0
输出:Error
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while (scanner.hasNextInt()) {
int x = scanner.nextInt();
int y = scanner.nextInt();
Sub sub = new Sub(x, y);
sub.calculate();
}
}
}
class Base {
private int x;
private int y;
public Base(int x, int y) {
this.x = x;
this.y = y;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public void calculate() {
System.out.println(getX() * getY());
}
}
class Sub extends Base {
//write your code here......
public int x;
public int y;
public Sub(int x,int y){
super(x,y);
}
public void calculate() {
if(getY()==0) System.out.print("Error");
else System.out.print(getX()/getY());
}
}