java学习第41天2020/8/15

一.

import java.util.Scanner;
public class vehicle {
	private double a,b;
	vehicle()
	{
		a=12.3;b=11.6;
	}
	vehicle(double m,double n){
		a=m;b=n;
	}
	public double get_a()
	{
		return a;
	}
	public double get_b()
	{
		return b;
	}
	public void judge()
	{
		if(a>b)
		{
			System.out.println("报警！超出最大载重量");
		}
		else {
			System.out.println("正常");
		}
	}
	public static void main(String []args)
	{
		Scanner input=new Scanner(System.in);
		vehicle k1=new vehicle();
		System.out.println("载重量:"+k1.get_a()+"最大载重量："+k1.get_b());
		k1.judge();
		double k,l;
		System.out.println("请输入载重量与最大载重量：");
		k=input.nextDouble();
		l=input.nextDouble();
		vehicle k2=new vehicle(k,l);
		k2.judge();
	}

}

 

 

 二.无

三.例题