How to reassign and increase the value of string variable

Question

I have the next example in C++:

this->name=new char[strlen(nom)+1];

So, I want to know how can I implement this example in java. The class have a :

private String name;

and I want to implement this method:

public void setNombre(String nom)

I try to do:

this.name= new String(nom.length()+1);

In C++:

this->name=new char[strlen(nom)+1];

I try to do:

this.name= new String(nom.length()+1);

Answer 1

Strings are immutable in java. In your C++ version it looks like you are creating an empty array of chars with the size of nom + 1.
You cannot assign an empty array of chars to a String in Java. Well, you can create a String full of '\' , but then you will never be able to modify your String after that, so I really don't see the purpose.

EDIT : I think that you just want to set the name to the value nom so you can do:

public void setNombre(String nom){
  this.name = nom;
}

But that's not what your C++ code does.