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# Student Rank Calculation System using Java

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In this tutorial i am going to teach the Rank Calculation System using Java step by step. based on the following condition.

• if avg is more than 90 rank should be A
• if avg is more than 80 rank should be B
• if avg is more than 70 rank should be C
• if avg is more than 60 rank should be D
• Other wise F

Here is Source code add the code in to the Ok Button

```int m1,m2,m3,tot;
double avg;
String name = txtName.getText();
m1 = Integer.parseInt(txtM1.getText());
m2 = Integer.parseInt(txtM2.getText());
m3 = Integer.parseInt(txtM3.getText());

tot = m1 + m2 + m3;

avg = tot/3;

String rank;
if (avg >= 90) {
rank = "A";
} else if (avg >= 80) {
rank = "B";
} else if (avg >= 70) {
rank = "C";
} else if (avg >= 60) {
rank = "D";
} else {
rank = "F";
}

model = (DefaultTableModel)jTable1.getModel();

{
name,
tot,
avg,
rank

}
);```

Clear Button

```txtName.setText("");
txtM1.setText("");
txtM2.setText("");
txtM3.setText("");
txtName.requestFocus();```

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