local

Author: mostafa-saad

18-Programming-4kids/06_homework_08_answer.cpp

@@ -4,7 +4,7 @@ using namespace std;
 int main() {
 
 	int days;
-	while(true) {
+	
 	cin >> days;
 
 	int years = days / 360;
@@ -14,7 +14,7 @@ int main() {
 	days = days % 30;
 
 	cout<<years<<" "<<months<<" "<<days<<"\n";
-	}
+	
 
 	return 0;
 }

18-Programming-4kids/11_01.cpp

@@ -0,0 +1,29 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+	char ch1 = 'A';
+	int ch_value = ch1;
+
+	cout<<ch_value<<"\n";
+	cout<<(int)'A'<<"\n";
+	cout<<(int)'B'<<"\n";
+	cout<<(int)'C'<<"\n";
+	cout<<(int)'Z'<<"\n";
+	cout<<(int)'A' + 26 - 1<<"\n";
+
+	char ch2 = 90;
+	cout<<ch2<<"\n";
+
+	cout<<"***\n";
+
+	cout<<(int)'a'<<"\n";
+	cout<<(int)'b'<<"\n";
+	cout<<(int)'c'<<"\n";
+	cout<<(int)'z'<<"\n";
+	cout<<(int)'a' + 26 - 1<<"\n";
+
+	cout<<('A' < 'a')<<"\n";
+	return 0;
+}
+

18-Programming-4kids/11_02.cpp

@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+	char ch1 = 'D';
+
+	if ('A' <= ch1 && ch1 <= 'Z') {
+		cout << ch1 << " is an upper case\n";
+		ch1 = ch1 - 'A' + 'a';
+		cout << ch1 << " now is a lower case\n";
+	} else if ('z' <= ch1 && ch1 <= 'z')
+		cout << ch1 << " is already a lower case\n";
+	else if ('0' <= ch1 && ch1 <= '9')
+		cout << ch1 << " is a digit\n";
+	else
+		cout << ch1 << " is neither a digit nor a letter\n";
+
+	return 0;
+}
+

18-Programming-4kids/11_03.cpp

@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+	string name = "Hany";
+
+	int sz = name.size();	// called function/method
+	cout << sz << "\n";	// 4
+
+	cout << name << "\n";
+
+	for (int i = 0; i < sz; ++i)
+		cout << name[i];	// internally array
+
+	return 0;
+}
+

18-Programming-4kids/11_04.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+	int numbers[5] = { 1, 2, 3, 4, 5 };
+
+	char name1[5] = { 'H', 'a', 'n', 'i' };	// 5 not 4
+	char name2[5] = "Hani";
+
+	string name3 = "Hani";
+
+	cout << name1 << "\n";
+	cout << name2 << "\n";
+	cout << name3 << "\n";
+
+	return 0;
+}
+

18-Programming-4kids/11_05.cpp

@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+
+	char name1[4];
+	name1[0] = 'H';
+	name1[1] = 'a';
+	name1[2] = 'n';
+	name1[3] = 'i';
+
+	cout << name1 << "\n";
+
+	return 0;
+}
+

18-Programming-4kids/11_06.cpp

@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+
+	char name1[5];
+	name1[0] = 'H';
+	name1[1] = 'a';
+	name1[2] = 'n';
+	name1[3] = 'i';
+	name1[4] = '\0';	// Null character
+
+	cout << name1 << "\n";
+
+	return 0;
+}
+

18-Programming-4kids/11_07.cpp

@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+
+	char name1[5];
+	name1[0] = 'H';
+	name1[1] = '\0';
+	name1[2] = 'n';
+	name1[3] = 'i';
+	name1[4] = '\0';	// Null character
+
+	cout << name1 << "\n";
+
+	return 0;
+}
+

18-Programming-4kids/11_08.cpp

@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+
+	string name1;
+	getline(cin, name1);
+	cout<<name1<<"\n";
+
+	char name2[50];
+	cin.getline(name2, 50);
+	cout<<name2<<"\n";
+
+
+	return 0;
+}
+

18-Programming-4kids/11_09.cpp

@@ -0,0 +1,14 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+
+	// Array of names - each name is sequence of letters!
+	string names[5] = {"Mostafa Saad", "Never Ever", "Hello world"};
+
+	for (int i = 0; i < 5; ++i)
+		cout<<names[i]<<"\n";
+
+	return 0;
+}
+