获取任意范围内的随机数

public static void main(String[] args) {
		// TODO Auto-generated method stub
		//回想以前1-100随机数的生成
//		int num=(int)(Math.random()*100)+1;
//		System.out.println(num);
		int start;
		int end;
		Scanner sc=new Scanner(System.in);
		System.out.println("please input start number:");
		start=sc.nextInt();
		System.out.println("please input end number:");
		end=sc.nextInt();
		int number=(int)(Math.random()*(end-start+1))+start;
		System.out.println(number);
		
}
	

	
}