INPUT/OUTPUT Operators

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The Standard Input Operator

• ">>" also called stream extraction operator is used to get an input.
• It is used with the standard input stream(cin).
• It stores the input in a variable.

Example: Getting an input in a variable named "In".

cin>>In;

The Standard Output Operator

• "<<" also called stream insertion operator is used to display output.
• It is used with the standard output stream(cout).
• It prints text or some valueon the output screen.

Example: Printing "Hello" on the screen.

cout<<"Hello";

Example: Printing a calculation.

cout<<2+7;   //Prints '9'

• The difference comes out on the basis of use of quotes"".

Cascading of I/O Operators

• Cascading refers to taking multiple inputs or outputs in a single line.
• Multiple inputs takes place by placing ">>" between the different variable names.
• Multiple outputs occur by placing "<<" between the different outputs.Mostly we need to separate the calculations part with the rest.

Example: Getting inputs in variables named "In" and "Put".

cin>>In>>Put;

Example: Printing "The Sum of 2 and 5 is 7.

cout<<"The Sum of 2 and 5 is "<<2+5;

See it all in a video: