There is a string "REMBO IUI Z &&", how can I check for the presence of characters &&

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4 answers 4

The String class defines the int indexOf(String sub) method int indexOf(String sub)

 String s = "dkdbd&&dgs", sub = "&&"; if (s.indexOf(sub) != -1) //элемент есть else //подстроки нет 
     public static boolean contains(String str, String substr){ return str.contains(substr); } contains("REMBO IUI Z&&", "&&");

    Or regular:

     public static boolean contains(String pattern, String content) { return content.matches(pattern); } contains("(.*)&&(.*)", "REMBO IUI Z&&") 
       String s = "REMBO IUI Z&&"; if (s.contains("&&")) { // действие }

        using contains for example.
        documentation