diff --git a/AreaOfATriangle/AreaOfATriangle.iml b/AreaOfATriangle/AreaOfATriangle.iml
new file mode 100644
index 0000000..9465dd8
--- /dev/null
+++ b/AreaOfATriangle/AreaOfATriangle.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/AreaOfATriangle/src/AreaOfATriangle.java b/AreaOfATriangle/src/AreaOfATriangle.java
new file mode 100644
index 0000000..0ec2743
--- /dev/null
+++ b/AreaOfATriangle/src/AreaOfATriangle.java
@@ -0,0 +1,93 @@
+import java.util.Scanner;
+
+public class AreaOfATriangle {
+ int[] triangle = new int[3];
+
+ public void inputSide() {
+ Scanner sc = new Scanner(System.in);
+ boolean flag = false;
+ while (!this.isTriangleValid()) {
+ if (flag) {
+ System.out.println("Please enter the right triangle sides!");
+ }
+ for (int i = 0; i < 3; i++) {
+ boolean isChecked = false;
+ while (!isChecked) {
+ try {
+ System.out.print("Input Side " + (i + 1) + ": ");
+ int value = sc.nextInt();
+ if (value <= 0) {
+ throw new NumberFormatException("Please enter a positive number greater than 0");
+ }
+ this.triangle[i] = value;
+ isChecked = true;
+ } catch (Exception e) {
+ if (e.getClass() == NumberFormatException.class) {
+ System.out.println(e.getMessage());
+ } else {
+ System.out.println("Please enter a valid number");
+ }
+ sc.nextLine();
+ }
+ }
+ }
+ flag = true;
+ }
+
+ sc.close();
+ }
+
+ private boolean isTriangleValid() {
+ int len = this.triangle.length;
+ if (this.triangle[0] == 0 || this.triangle[1] == 0 || this.triangle[2] == 0) {
+ return false;
+ }
+ int maxSideIdx = 0;
+ for (int i = 0; i < len; i++) {
+ int max = Math.max(this.triangle[i], this.triangle[maxSideIdx]);
+ if (max != this.triangle[maxSideIdx]) {
+ maxSideIdx = i;
+ }
+ }
+ int start = 0;
+ int end = len - 1;
+ while (start < end) {
+ if (start == maxSideIdx) {
+ start++;
+ } else if (end == maxSideIdx) {
+ end--;
+ }
+ if (this.triangle[start] + this.triangle[end] < this.triangle[maxSideIdx]) {
+ return false;
+ }
+ start++;
+ end--;
+ }
+ return true;
+ }
+
+ public void printResult() {
+ double p = this.calculateHalfOfPerimeter();
+ double area = this.calculateArea(p);
+
+ System.out.println("The area of the triangle is " + area);
+ }
+
+ private double calculateHalfOfPerimeter() {
+ double p = 0;
+ for (int j : this.triangle) {
+ p += j;
+ }
+ p /= 2;
+ return p;
+ }
+
+ private double calculateArea(double p) {
+ double area = p;
+ for (int side : this.triangle) {
+ area *= (p - side);
+ }
+ area = Math.sqrt(area);
+ return area;
+ }
+}
\ No newline at end of file
diff --git a/AreaOfATriangle/src/Main.java b/AreaOfATriangle/src/Main.java
new file mode 100644
index 0000000..fc9431d
--- /dev/null
+++ b/AreaOfATriangle/src/Main.java
@@ -0,0 +1,7 @@
+public class Main {
+ public static void main(String[] args) {
+ AreaOfATriangle areaOfATriangle = new AreaOfATriangle();
+ areaOfATriangle.inputSide();
+ areaOfATriangle.printResult();
+ }
+}
diff --git a/Person/Person.iml b/Person/Person.iml
new file mode 100644
index 0000000..9465dd8
--- /dev/null
+++ b/Person/Person.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/Person/src/Main.java b/Person/src/Main.java
new file mode 100644
index 0000000..bcdef3d
--- /dev/null
+++ b/Person/src/Main.java
@@ -0,0 +1,9 @@
+public class Main {
+ public static void main(String[] args) {
+ Person person = new Person();
+ person.input();
+ person.output();
+ person.changeName("John", "Dou");
+ person.output();
+ }
+}
diff --git a/Person/src/Person.java b/Person/src/Person.java
new file mode 100644
index 0000000..ef27b37
--- /dev/null
+++ b/Person/src/Person.java
@@ -0,0 +1,93 @@
+import java.time.LocalDate;
+import java.util.Scanner;
+
+public class Person {
+ private String firstName;
+ private String lastName;
+ private int birthYear;
+
+ public Person() {
+ }
+
+ public Person(String firstName, String lastName) {
+ this.setFirstName(firstName);
+ this.setLastName(lastName);
+ }
+
+ public void setFirstName(String firstName) {
+ this.firstName = firstName;
+ }
+
+ public void setLastName(String lastName) {
+ this.lastName = lastName;
+ }
+
+ public void setBirthYear(int birthYear) {
+ this.birthYear = birthYear;
+ }
+
+ public String getFirstName() {
+ return firstName;
+ }
+ public String getLastName() {
+ return lastName;
+ }
+ public int getBirthYear() {
+ return birthYear;
+ }
+ private int getAge(){
+ int currentYear = LocalDate.now().getYear();
+ int birthYear = getBirthYear();
+ return currentYear-birthYear;
+ }
+ public void input(){
+ Scanner sc = new Scanner(System.in);
+ int currentYear = LocalDate.now().getYear();
+ System.out.println("Enter first name: ");
+ String firstName = sc.nextLine();
+ this.setFirstName(firstName);
+ System.out.println("Enter last name: ");
+ String lastName = sc.nextLine();
+ this.setLastName(lastName);
+ boolean isChecked = false;
+ while (!isChecked) {
+ try {
+ System.out.println("Enter birth year: ");
+ int birthYear = sc.nextInt();
+ if (birthYear <= 0 || birthYear > currentYear) {
+ throw new NumberFormatException("Please enter a valid birth year!");
+ }
+ this.setBirthYear(birthYear);
+ isChecked = true;
+ } catch (Exception e) {
+ if (e.getClass() == NumberFormatException.class) {
+ System.out.println(e.getMessage());
+ } else {
+ System.out.println("Enter integer value!");
+ }
+ }
+ sc.nextLine();
+ }
+ sc.close();
+ }
+ public void output(){
+ System.out.println("\nInformation about person:");
+ System.out.println("First name: " + this.getFirstName());
+ System.out.println("Last name: " + this.getLastName());
+ System.out.println("Birth year: " + this.getBirthYear());
+ System.out.println("Age: " + this.getAge());
+ }
+ public void changeName(String ...info) {
+ String fn = info[0];
+ String ln = info[1];
+ if (info.length > 2) {
+ throw new NumberFormatException("More than 2 parameters are not allowed!");
+ }
+ if (!fn.isEmpty()) {
+ this.setFirstName(fn);
+ }
+ if (!ln.isEmpty()) {
+ this.setLastName(ln);
+ }
+ }
+}
diff --git a/SmallestNumber/SmallestNumber.iml b/SmallestNumber/SmallestNumber.iml
new file mode 100644
index 0000000..9465dd8
--- /dev/null
+++ b/SmallestNumber/SmallestNumber.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/SmallestNumber/SmallestNumber.java b/SmallestNumber/SmallestNumber.java
new file mode 100644
index 0000000..7783d5b
--- /dev/null
+++ b/SmallestNumber/SmallestNumber.java
@@ -0,0 +1,2 @@
+public class SmallestNumber {
+}
diff --git a/SmallestNumber/src/Main.java b/SmallestNumber/src/Main.java
new file mode 100644
index 0000000..d34f315
--- /dev/null
+++ b/SmallestNumber/src/Main.java
@@ -0,0 +1,7 @@
+public class Main {
+ public static void main(String[] args) {
+ SmallestNumber smallestNumber = new SmallestNumber();
+ smallestNumber.inputNumber();
+ smallestNumber.printResult();
+ }
+}
\ No newline at end of file
diff --git a/SmallestNumber/src/SmallestNumber.java b/SmallestNumber/src/SmallestNumber.java
new file mode 100644
index 0000000..f66b631
--- /dev/null
+++ b/SmallestNumber/src/SmallestNumber.java
@@ -0,0 +1,41 @@
+import java.util.Scanner;
+
+public class SmallestNumber {
+ int[] number = new int[3];
+ String[] counter = {"first", "second", "third"};
+
+ public void inputNumber() {
+ Scanner sc = new Scanner(System.in);
+ for (int i = 0; i < number.length; i++) {
+ boolean isChecked = false;
+ while (!isChecked) {
+ try {
+ System.out.print("Input the " + counter[i] + " number: ");
+ int value = sc.nextInt();
+ this.number[i] = value;
+ isChecked = true;
+ } catch (Exception e) {
+ System.out.println("Please enter an integer!");
+ }
+ sc.nextLine();
+ }
+ }
+ sc.close();
+ }
+
+ private int getSmallestNumber() {
+ int minI = 0;
+ for (int i = 0; i < number.length; i++) {
+ if (this.number[minI] > this.number[i]) {
+ minI = i;
+ }
+ }
+ return this.number[minI];
+ }
+
+ public void printResult() {
+ int res = this.getSmallestNumber();
+ System.out.println("The smallest number is " + res);
+ }
+}
+
diff --git a/Softserve.iml b/Softserve.iml
new file mode 100644
index 0000000..9465dd8
--- /dev/null
+++ b/Softserve.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/lesson1/Test1.java b/src/lesson1/Test1.java
deleted file mode 100644
index ac871de..0000000
--- a/src/lesson1/Test1.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package lesson1;
-
-public class Test1 {
- public static void main(String[] args) {
- System.out.println("Hello, Test1");
- }
-}
diff --git a/src/lesson1/Test2.java b/src/lesson1/Test2.java
deleted file mode 100644
index cda12dc..0000000
--- a/src/lesson1/Test2.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package lesson1;
-
-public class Test2 {
- public static void main(String[] args) {
- System.out.println("Hello, Test2");
- }
-}
diff --git a/src/lesson1/Test3.java b/src/lesson1/Test3.java
deleted file mode 100644
index 5404db9..0000000
--- a/src/lesson1/Test3.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package lesson1;
-
-public class Test3 {
- public static void main(String[] args) {
- System.out.println("Hello, Test3");
- }
-}
diff --git a/src/lesson1/Test4.java b/src/lesson1/Test4.java
deleted file mode 100644
index b5f6c2f..0000000
--- a/src/lesson1/Test4.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package lesson1;
-
-public class Test4 {
- public static void main(String[] args) {
- System.out.println("Hello, Test4");
- }
-}
diff --git a/src/lesson1/TestClass.java b/src/lesson1/TestClass.java
deleted file mode 100644
index 37a17f5..0000000
--- a/src/lesson1/TestClass.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package lesson1;
-
-public class TestClass {
-}
diff --git a/src/lesson1/myclass.java b/src/lesson1/myclass.java
deleted file mode 100644
index 2717bde..0000000
--- a/src/lesson1/myclass.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package lesson1;
-
-public class myclass {
-}
diff --git a/src/lesson1/test6.java b/src/lesson1/test6.java
deleted file mode 100644
index 3dbec3b..0000000
--- a/src/lesson1/test6.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package lesson1;
-
-public class test6 {
-}
diff --git a/src/lesson1/testclass5.java b/src/lesson1/testclass5.java
deleted file mode 100644
index e7af960..0000000
--- a/src/lesson1/testclass5.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package lesson1;
-
-public class testclass5 {
-}