Java 中的 Pattern splitAsStream() 方法與示例
java.util.regex 包中的 Pattern 類是正則表示式的編譯表示。
此類中的 splitAsStream() 方法接受 CharSequence 物件,將輸入字串表示為引數,並且在每次匹配時,它將給定的字串拆分為新的子字串,並將結果作為包含所有子字串的流返回。
示例
import java.util.regex.Pattern;
import java.util.stream.Stream;
public class SplitAsStreamMethodExample {
public static void main( String args[] ) {
//Regular expression to find digits
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";
//Compiling the regular expression
Pattern pattern = Pattern.compile(regex);
//verifying whether match occurred
if(pattern.matcher(input).find())
System.out.println("Given String contains digits");
else
System.out.println("Given String does not contain digits");
//Splitting the string
Stream<String> stream = pattern.splitAsStream(input);
Object obj[] = stream.toArray();
for(int i=0; i< obj.length; i++) {
System.out.println(obj[i]);
}
}
}輸出
Given String contains digits Name:Radha, age:25 Name:Ramu, age:32 Name:Rajeev, age:45 Name:Raghu, age:35 Name:Rahman, age:30
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