public class StringConvenience {

    public static void main(String[] args) {
   String ptrn="1\\+1=2";
   
    String text="1+1=2";
    if(text.matches(ptrn)){
        System.out.println(text+"\t"+ptrn);
    }else{
        System.out.println("no match");
    }
    }
}