在與string.replace的Java

Question

我怎麼能改造string

st = "[123, 123, 134, 90]" 

到

s = "123 123 134 90" 

Answer 1

替換 「」 與 「」

替換 「」 用 「」

將「[」替換爲「」

取代 「]」 與 「」

Answer 2

public class Regex { 
    public static void main(final String[] args) { 
     String st = "[123, 123, 134, 90]"; 

     //replace '[' with blank 
     String a = st.replace("[", ""); 
     //replace ',' with blank 
     String b = a.replace(",", ""); 
     //replace ']' with blank 
     String c = b.replace("]", ""); 

     System.out.println(c); 
    } 
} 

Answer 3

與感謝Maroun Maroun

String st = "[123, 123, 134, 90]"

String s = st.replaceAll("\\["," ").replaceAll("\\]"," ").replaceAll(","," ");