10.Selection(C)(c++) - Selection Statements in C If...

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Selection Statements in C++ If Statement in C++ Semantics: These statements have the same meaning as in the algorithmic language. 2- Two way selection: Syntax: if (logical expression) statements1; else statements2; 1- One way selection: Syntax: if (logical expression) statements;
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Example 1: C++ Program // File: double.cpp /*The program corresponds to Example 1 on slide 5. It takes an integer and prints its double value if it is less than 50 */ #include <iostream.h> void main ( ) { int n ; cin >> n ; if (n < 50) cout << “The double value is “ << n * 2 << endl ; cout << “ Finished “ << endl; }
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Example 2: C++ Program // File: Smaller.cpp /*The program corresponds to Example 3 on slide 14. It takes two integers and prints the smaller value using one output statement*/ #include <iostream.h> void main ( ) { int num1, num2 ; cin >> num1 >> num2 ; if ( num1 < num2 ) cout << “The smaller value is “ << num1 << endl ; else cout << “The smaller value is “ << num12 << endl ; }
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Example 3: C++ Program // File: Grades.cpp /*The program corresponds to Example 4 on slide 21. It reads a student’s mark
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