[amp_mcq option1=”Call” option2=”Parameter” option3=”Function” option4=”Declaration” correct=”option4″]<\/p>\n
The correct answer is D. Declaration<\/strong>.<\/p>\n A variable declaration statement defines a variable and its type. It does not indicate whether a variable is passed by value or by reference.<\/p>\n A variable passed by value is a copy of the original variable. Any changes made to the copy do not affect the original variable.<\/p>\n A variable passed by reference is a reference to the original variable. Any changes made to the copy also affect the original variable.<\/p>\n The following code shows how to declare a variable and pass it by value:<\/p>\n “` void foo(int y) { foo(x);<\/p>\n \/\/ x is still 10 The following code shows how to declare a variable and pass it by reference:<\/p>\n “` void foo(int &y) { foo(x);<\/p>\n \/\/ x is now 20 [amp_mcq option1=”Call” option2=”Parameter” option3=”Function” option4=”Declaration” correct=”option4″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[731],"tags":[],"class_list":["post-46011","post","type-post","status-publish","format-standard","hentry","category-visual-basic","no-featured-image-padding"],"yoast_head":"\n
\nint x = 10;<\/p>\n
\n y = 20;
\n}<\/p>\n
\n“`<\/p>\n
\nint x = 10;<\/p>\n
\n y = 20;
\n}<\/p>\n
\n“`<\/p>\n","protected":false},"excerpt":{"rendered":"