Java中的Pattern splitAsStream()方法及其示例
java.util.regex包的Pattern类是正则表达式的编译表示。
此类的splitAsStream()方法接受一个CharSequence对象，该对象将输入字符串表示为参数，并且在每次匹配时，它将给定的字符串拆分为一个新的子字符串，并将结果作为包含所有子字符串的流返回。
示例
import java.util.regex.Pattern;
import java.util.stream.Stream;
public class SplitAsStreamMethodExample {
public static void main( String args[] ) {
//正则表达式查找数字
String regex = "(\\s)(\\d)(\\s)";
String input = " 1 Name:Radha, age:25 2 Name:Ramu, age:32" + " 3 Name:Rajeev, age:45 4 Name:Raghu, age:35" + " 5 Name:Rahman, age:30";
//编译正则表达式
Pattern pattern = Pattern.compile(regex);
//验证是否发生匹配
if(pattern.matcher(input).find())
System.out.println("Given String contains digits");
else
System.out.println("Given String does not contain digits");
//分割字符串
Stream<String> stream = pattern.splitAsStream(input);
Object obj[] = stream.toArray();
for(int i=0; i< obj.length; i++) {
System.out.println(obj[i]);
}
}
}输出结果
Given String contains digits Name:Radha, age:25 Name:Ramu, age:32 Name:Rajeev, age:45 Name:Raghu, age:35 Name:Rahman, age:30