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Computer Plus Plus Miscellaneous Difficulty: Medium

What is the purpose of the throw statement in C# exception handling? . . . . . . . . represents a standard set of expressions in an email. Which operator is used to access the value stored at a pointer address in C? What is the difference between 'r' and 'w' modes when opening a file in C? What will be the output of the following C++ code? #include <iostream> #include <cstring> using namespace std; int main () { char str1[10] = "Hello"; char str2[10] = "World"; char str3[10]; int len ; strcpy( str3, str1); strcat( str1, str2); len = strlen(str1); cout << len << endl; return 0; }