Why doesn't java allow to declare and initialize a class-level variable in two different steps

Question

Can anyone explain me,

1. Why doesn't java allow to declare and initialize a class-level variable in two different steps.
2. Why can't I declare a public variable in public method.

public class Class10 {
    public String i=" ";
    public String j;
    j=" "; //Does-Not work

    public void method(String[] args){ 
        public String k=" "; // Does-not work  
        j=" ";
    }
}

Answer 1

1) It is possible with the right syntax (but discouraged) :

public class Class10 {
  public String i=" ";
  public String j;
  {j=" ";} //This is called an "Instance initialization block"
  //It would be better to do it in a constructor.

2) It does not make sense :

• If you want it to be visible to others methods, it should be an attribute.
• If you want it to be local to the methods, it should be a variable.