Write a JAVA program in NetBeans/Eclipse to create a JFrame containing two text fields and 3 buttons for operations of (Add, multiply and division). When user press any of the buttons, the operation mentioned for the button must be performed for the inputs in text fields & the result may please be displayed to the user with the help of JOptionPane. If any of the text fields is empty, display the user a JOptionPane based message that "No text is present in the textbox".
Use BorderLayout for your frame. You are NOT ALLOWED to use Drag-Drop GUI creation of NetBeans/ Eclipse forms. You have to code it yourself.

You need to design a circuit that implements the functions in the following table: s0 s1 function0 0 a + 10 1 a – b1 0 a + b1 1 a – 1s0 and s1 are 1-bit control inputs to select the function of the circuit. inputs a and b are 4-bitnumbers in 2s complement form. the output is also a 4-bit number in 2s complement form.you are allowed to use only one ttl 7483 4-bit adder to implement all the functions. but anynumber of other components (except the adder) can be used.hint: design a combinational logic circuit to modify the input b and the “carry input” of theadder depending on the control inputs s0 and s1.important: lab grade will depend on the working of the circuit & will be checked of by your labinstructor.1. is the output valid for the following input combinations: a. s0 = 0, s1 = 0, a = 7, b = 3? b. s0 = 0, s1 = 1, a = 7, b = 3? c. s0 = 1, s1 = 0, a = -4, b = -5? d. s0 = 1, s1 = 1, a = -8, b = 6? 2. what is the range of inputs (for both a and b) that will produce the valid output for all the functions?

Which of the following includes the three primary network access technologies? dsl, cable modem, broadband lan, wan, man voip, uc, iptv tcp/ip, ftp, dhcp

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