Create StudentResult.java

IntScription · IntScription · commit 9d2b21c2e0fa · 2023-08-04T23:26:58.000+05:30
diff --git a/Derived_Class/StudentResult.java b/Derived_Class/StudentResult.java
@@ -0,0 +1,89 @@
+/*
+ * Design a class called Student having data members like student name and roll
+ * number and method called show to display the name and roll number. Derive a
+ * class called Test from student class having three subjects marks as a data
+ * members and method named show_marks to display the marks. Create an interface
+ * called Sports contains constant sports marks and method show_sportswt. Derive
+ * a class Result from Test class and implement the interface Sports. Calculate
+ * total marks by considering sports marks. Then display the total in Result
+ * class.
+ */
+
+package Derived_Class;
+
+import java.util.Scanner;
+
+class Student {
+	String name;
+	int rollno;
+
+	Student(String name, int rno) {
+		this.name = name;
+		rollno = rno;
+	}
+
+	void show() {
+		System.out.println("Name: " + name + "\nRoll Number: " + rollno);
+	}
+}
+
+
+class Test extends Student {
+	int sub1, sub2, sub3;
+
+	Test(int sub1, int sub2, int sub3, String name, int rno) {
+		super(name, rno);
+		this.sub1 = sub1;
+		this.sub2 = sub2;
+		this.sub3 = sub3;
+	}
+
+	void show_marks() {
+		super.show();
+		System.out.println("Subject 1: " + sub1 + "\nSubject 2: " + sub2 + "\nSubject 3: " + sub3);
+	}
+}
+
+
+interface Sports {
+	final int sport_mark = 40;
+
+	void show_sportswt();
+}
+
+
+class Result extends Test implements Sports {
+	int total = sub1 + sub2 + sub3 + sport_mark;
+
+	public void show_sportswt() {
+		System.out.println("Sports marks: " + sport_mark);
+	}
+
+	Result(String name, int rollno, int sub1, int sub2, int sub3) {
+		super(sub1, sub2, sub3, name, rollno);
+	}
+
+	void display() {
+		super.show_marks();
+		System.out.println("Total Marks: " + total);
+	}
+}
+
+public class StudentResult {
+    public static void main(String[] args){
+        Scanner s = new Scanner(System.in);
+		System.out.println("Enter name, roll number and marks in 3 subjects:");
+		String name = s.nextLine();
+		int rno = s.nextInt();
+		int sub1 = s.nextInt();
+		int sub2 = s.nextInt();
+		int sub3 = s.nextInt();
+
+		Result res = new Result(name, rno, sub1, sub2, sub3);
+
+		res.display();
+		res.show_sportswt();
+
+		s.close();
+    }
+}
