Ok, I want to check if a String has `=` as first character & then followed by any number, if there is a space between `=` & number then that is also ok.

Ok, here is the example,

```
String s="=2245"; --> return true
String s="=   545"; --> return true
String s="= 22"; --> return true
String s="= m  545"; --> return false
String s="=m545"; --> return false

```

SO here is what I did

```
if(s.matches("=[0-9]+")){
   return true;
}

```

This will work if there is not space between `=` & number

So I changed to:

```
if(s.matches("=\\s[0-9]+")){
       return true;
}

```

Then it will work if there is 1 space between the `=` & number & won't work in other cases.

So how to fix it?