Instead of writing the following which id not valid Java,
Paraula tipo1;
tipo1 = {
Paraula.lletres[0] = 't';
Paraula.lletres[1]='1';
Paraula.llargaria = 2;
perhaps you intended to write
Paraula tipo1 = new Paraula();
tipo1.lletres[0] = 't';
tipo1.lletres[1]='1';
tipo1.llargaria = 2;
However a much cleaner way to do this is to pass a String to the constructor
Paraula tipo1 = new Paraula("t1");
Where your constructor is
public Paraula(String s) {
lletres = s.toCharArray();
llargaria = lletres.length;
}
solved declaring and assigning variable [closed]