Question

What are function?Explain in brief
In creating calculator using java

Answer 1

Functions mainly refers to the piece of code which performs some operations and operationally returns a value
Coding for making calculator is
Int no1, no2, sum;
no1=Integer.parseInt(tf1.getText());
no2=Integer.parseInt(tf2.getText());
sum=no1+no2;
tf3.setText(" "+sum);
Add labels and text fields as per your convenience