i) Code to calculate and display commission:
int com=0;
if(jRadioButton1.isSelected())
com=500;
else if(jRadioButton2.isSelected())
com=1000;
else if(jRadioButton3.isSelected())
com=2000;
jTextField3.setText(“”+com);
ii) Code to calculate and display Gross Salary:
int sal,comm;
sal=Integer.parseInt(jTextField2.getText());
comm=Integer.parseInt(jTextField3.getText());
jTextField4.setText(“”+(sal+comm));
iii) Code to calculate and display charges for the facilities:
int extra=0;
if(jCheckBox1.isSelected())
extra=extra+500;
if(jCheckBox2.isSelected())
extra=extra+2000;
jTextField5.setText(“”+extra);
iv) Code to calculate and display the Net Salary
int amt,extra;
amt=Integer.parseInt(jTextField4.getText());
extra=Integer.parseInt(jTextField5.getText());
jTextField6.setText(“”+(amt-extra));