Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
305 views
in Technique[技术] by (71.8m points)

working with binary numbers in java

I would like to know which one is the best way to work with binary numbers in java. I need a way to create an array of binary numbers and do some calculations with them. For example, I would like to X-or the values or multiply matrix of binary numbers.

Problem solved: Thanks very much for all the info.

I think for my case I'm going to use the BitSet mentioned by @Jarrod Roberson

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

In Java edition 7, you can simply use binary numbers by declaring ints and preceding your numbers with 0b or 0B:

int x=0b101;
int y=0b110;
int z=x+y;

System.out.println(x + "+" + y + "=" + z);
//5+6=11

/*
* If you want to output in binary format, use Integer.toBinaryString()
*/

System.out.println(Integer.toBinaryString(x) + "+" + Integer.toBinaryString(y)
         + "=" + Integer.toBinaryString(z));
//101+110=1011

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...