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
1.3k views
in Technique[技术] by (71.8m points)

java - How to extract numbers from a String into an array

I need to put all numeric values stored in a String into an array:

String str = "12,1,222,55";

If I do this, then it will merge all numbers:

str = str.replaceAll("\D+","");

How to get something like this?:

int[] result = new int[]{12,1,122,55};
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)

First split the string. Then parse each element in String array to new array

String[] s=str.split("\D+");
int[] intarray=new int[s.length];
for(int i=0;i<s.length;i++){
   intarray[i]=Integer.parseInt(s[i]);
}

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

...