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import java.util.*; import java.lang.*; class Rextester { public static void main(String args[]) { //Undergraduate s=new Student();child cannot be a parent Student s = new Undergraduate(); s.setName("Ashish"); System.out.println(s.getName()); s.printAbout(); } } class Student { String name; public String getName() { return name; } public void setName(String n) { name = n; } public void printAbout() { System.out.println("I am a student."); } } class Undergraduate extends Student { public void printAbout() { System.out.println("I am an undergraduate."); } }
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