查个人税

[java]代码库

	public static void main(String[] args) {
		double income,tax;
		Scanner in=new Scanner(System.in);
		System.out.print("请输入你的个人收入: ");
		income=in.nextDouble();
		tax=0;
		int number=0;
		if( income <=1800)
			number =0;
		else if( income <=5000)
			number =1;
		else if( income <=10000)
			number =2;
		else
			number =3;
		switch(number){
		case 0:System.out.println("免税.");
		break;
		case 1:tax=(income-1800)*0.2;
		break;
		case 2:tax=(5000-1800)*0.2+(income-5000)*0.35;
			
		break;
		case 3:tax=(5000-1800)*0.2+(10000-5000)*0.35+(income-10000)*0.5;	
				
		break;
		default:
			
		}
		
					
		System.out.println("你的个人收入所得税额为:"+tax);
		

	}

}