Arithmetic,String And Relational Operators In Visual Basic

Dim i, j, r as integer
private sub cmdadd_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
r = i + j
msgbox “addition is:” & r
end sub
Private sub cmdsub_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
r = i– j
msgbox “subtraction is:” & r
end sub
Private sub cmdmul_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
r = i * j
msgbox “multiplication is:”  & r
end sub
Private sub cmddiv_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
r = i / j
msgbox “division is:” & r
end sub
Private sub cmdintdiv_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
r = i \ j
msgbox “integer division is:” & r
end sub
Private sub cmdexp_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
r = i ^ j
msgbox “exponentional is:” & r
end sub
Private sub cmdmod_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
r = i mod j
msgbox “mod is:” & r
end sub



Private sub cmdconcatenate_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
msgbox txtnum1.text & txtnum2.text
end sub
Private sub cmdless_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
if (i< j) then
msgbox "num 1 is less"
else
msgbox "num 2 is less"
end if
end sub
Private sub cmdgtr_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
if (i> j) then
msgbox "num 1 is greater"
else
msgbox "num 2 is greater"
end if
end sub
Private sub cmdlessequal_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
if (i<= j) then
msgbox " num 1 is less than or equal to num 2"
else
msgbox " num 1 is greater"
end if
end sub
Private sub cmdgtrequal_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
if (i>= j) then
msgbox " num 1 is greater than or equal to num 2"
else
msgbox " num 1 is less"
end if
end sub
Private sub cmdequal_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
if (i = j) then
msgbox "num is equal"
else
msgbox "num is not equal
end if
end sub
Private sub cmdnotequal_click()
i = val(txtnum1.text)
j = val(txtnum2.text)
if (i<> j) then
msgbox "num is not equal"
else
msgbox "num is equal"
end if
end sub

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Output 

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