Algorithm Fourth Edition study note one

1, integer.tobinarystring (2); that is, the input number is converted to a binary number, but the conversion output is a string of type strings.

2, (char//E in Java, the char type string is directly treated as an integer on the Asccii table when it is run.   //197    char + char, char + int type are promoted to int.　

// is a scientific counting method, which represents 0.000002. 

4  , what is Java bytecode?      It is a low-level representation of a program that can run on a virtual machine in Java.      abstracting a program into bytecode guarantees that Java programmer code can run on a variety of devices          . 

Algorithm Fourth Edition study note one