Old trap

I was puzzled why one of my objects had incorrect toString()

class Foo { 
    private long id; 
    private String name; 
 
    Foo(long id, String name) { 
        this.id = id; 
        this.name = name; 
    } 
 
    public String toString () { 
        return id + ' ' + name; 
    } 
}

The statement new Foo(123, "Hello") prints something like "155Hello" instead of "123 Hello". Of course the reason is pretty simple:

 
     public String toString2() { 
        return new StringBuilder().append(id + 32L).append(name.toString()).toString(); 
    }