Understand the effects of public and private access : Access Control « Class Definition « Java Tutorial

1. Java Tutorial
2. Class Definition
3. Access Control

class Test {
  int a; // default access

  public int b; // public access

  private int c; // private access

  void setc(int i) {
    c = i;
  }

  int getc() { 
    return c;
  }
}

class AccessTest {
  public static void main(String args[]) {
    Test ob = new Test();
    ob.a = 10;
    ob.b = 20;

    ob.setc(100); 
    System.out.println("a, b, and c: " + ob.a + " " + ob.b + " " + ob.getc());
  }
}