1. Methods
Android Club 2015

2. private: example public static void main(String[] args) {
ClassOne perviyKlass = new ClassOne();
perviyKlass.print(); }
private void print(){
System.out.println("Hello Android!");

3. Private: practice Create new private method: print2()
In this method print: “Hello, Tashkent”
Call this method from main() method

4. public: example
public void say(){ System.out.println("Hello Hello Hello Hello!"); } ClassTwo: public static void main(String[] args) { ClassOne perviyKlass = new ClassOne(); perviyKlass.say(); }

5. public: practice Create class: ClassIchi
Create method inside ClassIchi: talk()
Create another class: ClassNi
Call talk() method from ClassNi’s main method

6. non-static: example
public void nonStatic(){ System.out.println("Non static"); } public static void main(String[] args) { ClassOne perviyKlass = new ClassOne(); perviyKlass.nonStatic();

7. non-static: practice Create non static method: write()
In main() method: create instance of class
Call write() method

8. static: example
public static void staticMethod(){ System.out.println("Static"); } public static void main(String[] args) { ClassOne.staticMethod();

9. static: practice Create static method: sayHello()
Call this method from main method

10. return – int: example
private static int getNumber() { return 5; } public static void main(String[] args) { int result = getNumber(); System.out.println(result); }

11. return – int: practice Create method: getTen() Return: 10
In main method print value from getTen()

12. return-String: example
private static String getName() { return "Joe"; } public static void main(String[] args) { String result = getName(); System.out.println(result);

13. return – String: practice
Create new method: getTitle()
Return: “Main page”
In main method print value from getTitle()

14. return – boolean: example
private static boolean isOpen() {
return true; }
public static void main(String[] args) {
boolean result = isOpen();
System.out.println(result);

15. return – boolean: practice
Create method: isPassed
Return: true
Print this value in main method

16. return – char: example private static char getGrade() { return 'a'; }
public static void main(String[] args) {
char result = getGrade();
System.out.println(result);

17. return – char: practice
Create method: getAndroidVersion
Return: ‘m’
Print this value in main method

18. Pass int - example private static void printInt(int x) {
System.out.println(x); }
public static void main(String[] args) {
printInt(2015);

19. Pass int - practice
Create method: printNumber
Pass int: 123
Print int

20. Pass String - example private static void printString(String text) {
System.out.println(text); }
public static void main(String[] args) {
printString("Android");

21. Pass String - practice Create method: printName Pass String: your name

22. Pass boolean - example
private static void printBoolean(boolean isReady) {
System.out.println(isReady); }
public static void main(String[] args) {
printBoolean(false);

23. Pass boolean - practice
Create method: printCakeReady
Pass boolean: true
Print this value

24. Pass char - example private static void printChar(char grade) {
System.out.println(grade); }
public static void main(String[] args) {
printChar('c');

25. Pass char - practice Create method printLetter() Pass char: ‘w’
Print char

26. Congratulations!
Now we are experts on methods!