// // Undergraduate.java // class Undergraduate extends Student { private int level; public Undergraduate() { super(); level = 1; } public Undergraduate(String n, int s, int l) { super(n, s); level=l; } public void set(String n, int s, int l) { super.set(n, s); level=l; } public String toString() { return super.toString() + ", level = " + level; } public static void main(String[] args) { Undergraduate me = new Undergraduate("John Wang", 100, 4); System.out.println(me); me.set("Bush", 70, 1); System.out.println(me); System.out.println("\n\nDone.\n\n"); } }