How to intercept in java based on the @ character and get the string in front of @
Use substring to intercept, get the index value of the @ character, and intercept the index value from 0 to @. You can get the string in front of @
public class Test {
public static void main(String[] args) {
String email = "[email protected]";
System.out.println(email);
//indexOf("@")----获取@字符索引值
String emailPrefix = email.substring(0, email.indexOf("@"));
System.out.println(emailPrefix);
}
}
Print the result:
