public class J2_5_1 {
  public static void main (String[] args) {
    byte byte_a = 10;
    System.out.println("byte_a = " + byte_a); 
    int int_a;
    int_a = byte_a;
    System.out.println("int_a = " + int_a); 

    /*
    int int_b = 10000;
    System.out.println("int_b = " + int_b); 
    byte byte_b;
    byte_b = int_b;
    System.out.println("byte_b = " + byte_b);
    */ 
  }
}