This tutorial will teach you Input two numbers to calculate and display the total.
paste the code inside the + button
int Num1 = Integer.parseInt(txtNum1.getText()); int Num2 = Integer.parseInt(txtNum2.getText()); int tot = Num1 + Num2; txtTotal.setText(String.valueOf(tot));
paste the code inside the – button
int Num1 = Integer.parseInt(txtNum1.getText()); int Num2 = Integer.parseInt(txtNum2.getText()); int tot = Num1 - Num2; txtTotal.setText(String.valueOf(tot));
paste the code inside the * button
int Num1 = Integer.parseInt(txtNum1.getText()); int Num2 = Integer.parseInt(txtNum2.getText()); int tot = Num1 * Num2; txtTotal.setText(String.valueOf(tot));
paste the code inside the / button
int Num1 = Integer.parseInt(txtNum1.getText()); int Num2 = Integer.parseInt(txtNum2.getText()); int tot = Num1 / Num2; txtTotal.setText(String.valueOf(tot));
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