In this tutorials will teach you how to calculate student marks using OOP concepts. This is an important for developing a java projects. there are many students who struggling with this area. so that I bring this article for all to clear the doubts..Input the studentname and marks to calculating the total,grade. the grade is awared as “Pass” when the average is more than 50.otherwise grade is fail.
After that you have to create the class Cal.java
public class Cal { public int m1,m2,m3,tot; public double avg; public String grade; public int Add() { tot = m1 + m2 + m3; return tot; } public double Avg() { avg = tot/3; return avg; } public String Grade() { if(avg > 50) { grade = "Pass"; } else { grade = "Fail"; } return grade; } }
Cal c = new Cal(); c.m1 = Integer.parseInt(txtNum1.getText()); c.m2 = Integer.parseInt(txtNum2.getText()); c.m3 = Integer.parseInt(txtNum3.getText()); txttot.setText(String.valueOf(c.Add())); txtavg.setText(String.valueOf(c.Avg())); txtgrade.setText(String.valueOf(c.Grade()));
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