java 基本类型转换 字符char 转 数字int

java基本数据类型，char与int互相转换

        char c = 'a';
        System.out.println(c + 0); //char转int
        int i = c;
        System.out.println(i);//char转int
        char c2 = (char)i;
        System.out.println(c2);//int转char

具体参看(基本数据类型)[http://blog.youkuaiyun.com/c5113620/article/details/78722359] : http://blog.youkuaiyun.com/c5113620/article/details/78722359