BasePractice · Pastor · Dec 13, 2024 · Dec 13, 2024
diff --git a/students/23K0365/23K0365-p21/pom.xml b/students/23K0365/23K0365-p21/pom.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>23K0365</artifactId>
+        <groupId>ru.mirea.practice</groupId>
+        <version>2024.1</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>23K0365-p21</artifactId>
+    <description>Массивы</description>
+</project>
diff --git a/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/Main.java b/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/Main.java
@@ -0,0 +1,12 @@
+package ru.mirea.practice.s0000001;
+
+public final class Main {
+
+    private Main() {
+
+    }
+
+    public static void main(String[] args) {
+        System.out.println("первая практическая работа!");
+    }
+}
diff --git a/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/Solution.java b/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/Solution.java
@@ -0,0 +1,42 @@
+package ru.mirea.practice.s0000001;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.HashSet;
+
+public class Solution<T, K, V> { // Integer, String, Boolean
+    public List<T> newList(T... elements) {
+        return new ArrayList<>(java.util.Arrays.asList(elements));
+    }
+
+    public Set<T> newHS(T... elements) {
+        return new HashSet<>(java.util.Arrays.asList(elements));
+    }
+
+    public Map<K, V> newHM(K[] keys, V[] values) {
+        if (keys.length != values.length) {
+            System.exit(0);
+        }
+        Map<K, V> a = new HashMap<>();
+        for (int i = 0; i < keys.length; i++) {
+            a.put(keys[i], values[i]);
+        }
+        return a;
+    }
+
+    public static void main(String[] args) {
+        Solution<Integer, String, Boolean> me = new Solution<>();
+        String[] k = {"0", "wow", "yeah", "etc"};
+        Boolean[] v = {true, false, true, true};
+        List<Integer> myLst = me.newList(12, 15, 523, 235);
+        Set<Integer> urSet = me.newHS(12, 15, 523, 235);
+        Map<String, Boolean> ourMap = me.newHM(k, v);
+        System.out.println(urSet.contains(124));
+        System.out.println(myLst.get(0));
+        System.out.println(ourMap.get("wow"));
+    }
+}
+
diff --git a/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskFour.java b/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskFour.java
@@ -0,0 +1,26 @@
+package ru.mirea.practice.s0000001;
+
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+
+public class TaskFour<T> {
+    List<T> myLst = new LinkedList<>();
+
+    public void saveCatalog(T... args) {
+        myLst.addAll(Arrays.asList(args));
+    }
+
+    public void getFive() {
+        for (int i = 0; i < 5; i++) {
+            System.out.print(myLst.get(i) + "   ");
+        }
+    }
+
+    public static void main(String[] args) {
+        TaskFour<Boolean> a = new TaskFour<>();
+        a.saveCatalog(true,false,true,true,true,false,
+                true,true,false,true,true,true,false,true);
+        a.getFive();
+    }
+}
diff --git a/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskOne.java b/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskOne.java
@@ -0,0 +1,26 @@
+package ru.mirea.practice.s0000001;
+
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+
+public class TaskOne<T> {
+    private final T[] arr;
+
+    public TaskOne(T[] arr) {
+        this.arr = arr;
+    }
+
+    public List<T> getUrList() {
+        return new LinkedList<>(Arrays.asList(arr));
+    }
+
+    public static void main(String[] args) {
+        String[] strs = {"q","qw","qwe","qwer"};
+        Integer[] ints = {1,2,3,4,5};
+        TaskOne a = new TaskOne(strs);
+        System.out.println(a.getUrList().get(0));
+        TaskOne b = new TaskOne(ints);
+        System.out.println(b.getUrList().get(0));
+    }
+}
diff --git a/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskThree.java b/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskThree.java
@@ -0,0 +1,22 @@
+package ru.mirea.practice.s0000001;
+
+public class TaskThree<T> {
+    private T[] anotherArr;
+
+    public TaskThree(T[] anotherArr) {
+        this.anotherArr = anotherArr;
+    }
+
+    public T getEl(int index) {
+        return anotherArr[index];
+    }
+
+    public static void main(String[] args) {
+        Boolean[] bools = {true,false,true};
+        Short[] shortPeople = {-32760,-32761,-32762};
+        TaskThree<Boolean> a = new TaskThree(bools);
+        TaskThree<Short> b = new TaskThree(shortPeople);
+        System.out.println(a.getEl(2));
+        System.out.println(b.getEl(2));
+    }
+}
diff --git a/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskTwo.java b/students/23K0365/23K0365-p21/src/main/java/ru/mirea/practice/s0000001/TaskTwo.java
@@ -0,0 +1,28 @@
+package ru.mirea.practice.s0000001;
+
+public class TaskTwo<T> {
+    private T[] urArr;
+
+    public TaskTwo(T[] urArr) {
+        this.urArr = urArr;
+    }
+
+    public void knowType() {
+        System.out.println(urArr.getClass().getName());
+    }
+
+    public static void main(String[] args) {
+        String[] strs = {"q","qw","qwe","qwer"};
+        Integer[] ints = {1,2,3,4,5};
+        Boolean[] bools = {true,false,true};
+        Short[] shortPeople = {-32760,-32761,-32762};
+        TaskTwo a = new TaskTwo(strs);
+        TaskTwo b = new TaskTwo(ints);
+        TaskTwo c = new TaskTwo(bools);
+        final TaskTwo d = new TaskTwo(shortPeople);
+        a.knowType();
+        b.knowType();
+        c.knowType();
+        d.knowType();
+    }
+}
diff --git a/students/23K0365/23K0365-p22/pom.xml b/students/23K0365/23K0365-p22/pom.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>23K0365</artifactId>
+        <groupId>ru.mirea.practice</groupId>
+        <version>2024.1</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>23K0365-p22</artifactId>
+    <description>Массивы</description>
+</project>
diff --git a/students/23K0365/23K0365-p22/src/main/java/ru/mirea/practice/s0000001/Main.java b/students/23K0365/23K0365-p22/src/main/java/ru/mirea/practice/s0000001/Main.java
@@ -0,0 +1,12 @@
+package ru.mirea.practice.s0000001;
+
+public final class Main {
+
+    private Main() {
+
+    }
+
+    public static void main(String[] args) {
+        System.out.println("первая практическая работа!");
+    }
+}
diff --git a/students/23K0365/23K0365-p22/src/main/java/ru/mirea/practice/s0000001/Pln.java b/students/23K0365/23K0365-p22/src/main/java/ru/mirea/practice/s0000001/Pln.java
@@ -0,0 +1,69 @@
+package ru.mirea.practice.s0000001;
+
+import java.util.ArrayDeque;
+import java.util.Deque;
+
+public abstract class Pln {
+    private static boolean isOperate(String token) {
+        return "+".equals(token) || "-".equals(token) || "*".equals(token) || "/".equals(token) || "^".equals(token);
+    }
+
+    private static double operationChoose(double a, double b, String op) {
+        switch (op) {
+            case "+": return a + b;
+            case "-": return a - b;
+            case "*": return a * b;
+            case "/":
+                if (b == 0) {
+                    throw new ArithmeticException("INFINITY");
+                }
+                return a / b;
+            default: return Double.NaN;
+        }
+    }
+
+    public static double calculateSmth(String... args) {
+        Deque<Double> st = new ArrayDeque<>();
+        for (String one : args) {
+            try {
+                double temp = Double.parseDouble(one);
+                st.push(temp);
+            } catch (NumberFormatException e) {
+                if (isOperate(one)) {
+                    if (st.size() < 2) {
+                        System.err.println("too litle amount of opearnds: " + one);
+                        return Double.NaN;
+                    }
+                    double x = st.pop();
+                    double y = st.pop();
+                    try {
+                        st.push(operationChoose(y, x, one));
+                    } catch (ArithmeticException ae) {
+                        System.err.println("error: ");
+                        return Double.NaN;
+                    }
+                } else {
+                    System.err.println("uncorrect symbol: " + one);
+                    return Double.NaN;
+                }
+            } catch (Exception e) {
+                System.err.println("incorrect symbols");
+                return Double.NaN;
+            }
+        }
+
+        if (st.size() != 1) {
+            System.err.println("error");
+            return Double.NaN;
+        }
+        return st.pop();
+    }
+
+    public static void main(String[] args) {
+        String[] a = {"2", "3", "*", "4", "5", "*", "+"};
+        String[] b = {"2", "3", "4", "5", "6", "*", "+", "-", "/"};
+        System.out.println(calculateSmth(a));
+        System.out.println(calculateSmth(b));
+    }
+}
+
diff --git a/students/23K0365/23K0365-p23/pom.xml b/students/23K0365/23K0365-p23/pom.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>23K0365</artifactId>
+        <groupId>ru.mirea.practice</groupId>
+        <version>2024.1</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>23K0365-p23</artifactId>
+    <description>Массивы</description>
+</project>
diff --git a/students/23K0365/23K0365-p23/src/main/java/ru/mirea/practice/s0000001/Main.java b/students/23K0365/23K0365-p23/src/main/java/ru/mirea/practice/s0000001/Main.java
@@ -0,0 +1,12 @@
+package ru.mirea.practice.s0000001;
+
+public final class Main {
+
+    private Main() {
+
+    }
+
+    public static void main(String[] args) {
+        System.out.println("первая практическая работа!");
+    }
+}