How to Create a simple calculator Program by using Eclipse IDE

Hi! I am Md. AB today we will learn  How to Create a simple calculator Program by using Eclipse IDE
Create Calculator in Eclipse  with Java Program

See code for Dot below:

if(! txtDisplay.getText().contains("."))
         {
         txtDisplay.setText(txtDisplay.getText() + btnDot.getText());
         }

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• #calculator
• #simple_calculator
• #claculator_with_java