java.util.regex.Pattern类使用举例

import java.util.regex.Pattern;

public class SplitDemo {

     private static final String REGEX = ":";
     private static final String INPUT = "one:two:three:four:five";
    
     public static void main(String[] args) {
         Pattern p = Pattern.compile(REGEX); //将给定的正则表达式编译到模式中
         String[] items = p.split(INPUT); //围绕此模式的匹配拆分给定输入序列。
         for(String s : items) {
             System.out.println(s);
         }
        
         System.out.println("#############");
        
         Pattern str=Pattern.compile(":");
         String[] strArray=str.split(INPUT,3 );
         for(String s:strArray){
          System.out.println(s);
         }
        
         System.out.println("#############");
        
         String[] strArray2=str.split(INPUT,-3 );
         for(String s:strArray2){
          System.out.println(s);
         }
     }
}

运行结果:
one
two
three
four
five
#############
one
two
three:four:five
#############
one
two
three
four
five