ASCII转字符 字符转ASCII 十进制转其它进制

	public static void main(String[] args)
	{
	
		
		String s="a";
		int tmp =s.hashCode();
		
		

		System.out.println((int)s.charAt(0));
		
		int x =65;
		System.out.println((char)x);
		
		System.out.println(Long.toString(x, 2));
		
	}