Added a sources.

Author: suoapvs

src/main/java/com/cpm/Main.java

@@ -0,0 +1,44 @@
+package com.cpm;
+
+import com.cpm.prog.Conformation;
+import com.cpm.prog.Program;
+import com.cpm.parameters.Constant;
+import com.cpm.parameters.ParametersSystem;
+import com.cpm.prog.License;
+
+import javax.swing.*;
+
+public class Main {
+
+    public static void main(String[] args) {
+        try {
+            for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
+                if ("Windows".equals(info.getName())) {
+                    UIManager.setLookAndFeel(info.getClassName());
+                    break;
+                }
+            }
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+        newApplication();
+    }
+
+    private static void newApplication() {
+        ParametersSystem.setFileName(Constant.FILE_SYSTEM);
+        final ParametersSystem parameters = ParametersSystem.getInstance();
+        try {
+            if (!parameters.isLicense()) {
+                final Thread thread = new Thread(new License());
+                thread.start();
+                thread.join();
+            }
+        } catch (InterruptedException ex) {
+            ex.printStackTrace();
+        }
+        final Conformation conformation = new Conformation();
+        final Program program = new Program(conformation);
+        final Thread th = new Thread(program);
+        th.start();
+    }
+}

src/main/java/com/cpm/gui/UserInterface.java

@@ -0,0 +1,40 @@
+package com.cpm.parameters;
+
+public final class Constant {
+
+    public static final int NUMBER_DEFOULT = 6;
+    public static final int ACCURACY_DEFOULT = 3;
+
+    public static final String NAME = "CPM";
+    public static final String VERSION = "v. 1.0";
+    public static final String FILE_RESULT = NAME + "_Result.txt";
+    public static final String FILE_MANUAL = "manual.pdf";
+    public static final String FILE_SYSTEM = "system.cpm";
+
+    public static final String FONT_NAME = "Times New Roman";
+    public static final String MAIN_FRAME_NAME = NAME + ": Cremer-Pople method";
+
+    public static final String ERROR = NAME + ": Error!";
+    public static final String WARNING = NAME + ": Warning!";
+    public static final String ABOUT = NAME + ": About the program";
+    public static final String LICENSE = NAME + ": License agreement";
+    public static final String NUMERICAL_VALUE = "Torsion angles should take numerical values!";
+    public static final String NUMBERS_DIAPASON = "The number of members in the cycle can be anywhere from 5 to 15!";
+    public static final String ACCURACY_DIAPASON = "The order of accuracy can be anywhere from 1 to 5!";
+    public static final String ENTER_ANGLES = "Enter the experimental torsion angles!";
+    public static final String SAVE_RESULT = "Do you want to save results to file?";
+    public static final String FILE_ABSENT = "File is absent!";
+
+    public static final String PROGRAM_ABOUT = NAME + " " + VERSION + "\n"
+            + "\nAuthors: Yu. A. Salimov and Yu. G. Vlasenko\n"
+            + "\nE-mail:\n"
+            + "yuriy.alex.salimov@gmail.com\n"
+            + "jgeorge@ukr.net";
+
+    public static final String LICENSE_AGREEMENT = NAME + " " + VERSION + "\n"
+            + "Same text\n"
+            + "You agree?\n";
+
+    private Constant() {
+    }
+}

src/main/java/com/cpm/parameters/Constant.java

@@ -0,0 +1,92 @@
+package com.cpm.parameters;
+
+import com.cpm.prog.Files;
+
+import java.io.IOException;
+import java.io.Serializable;
+
+public final class ParametersSystem implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+    private static transient String fileName;
+    private int number;
+    private int accuracy;
+    private boolean onTop;
+    private boolean autoSave;
+    private boolean license;
+
+    private transient static ParametersSystem parameters;
+
+    private ParametersSystem() {
+        this.number = Constant.NUMBER_DEFOULT;
+        this.accuracy = Constant.ACCURACY_DEFOULT;
+    }
+
+    public static ParametersSystem getInstance() {
+        if (parameters == null) {
+            try {
+                parameters = (ParametersSystem) Files.deserialization(fileName);
+            } catch (IOException | ClassNotFoundException ex) {
+                parameters = new ParametersSystem();
+            }
+        }
+        return parameters;
+    }
+
+    @Override
+    public String toString() {
+        return "number = " + this.number +
+                "; \r\naccuracy = " + this.accuracy +
+                "; \r\nonTop = " + this.onTop +
+                "; \r\navtoSave = " + this.autoSave +
+                "; \r\nlicense = " + this.license;
+    }
+
+    public static void setFileName(final String fileName) {
+        ParametersSystem.fileName = fileName;
+    }
+
+    public static String getFileName() {
+        return fileName;
+    }
+
+    public void setNumber(final int number) {
+        this.number = number;
+    }
+
+    public int getNumber() {
+        return this.number;
+    }
+
+    public void setAccuracy(final int accuracy) {
+        this.accuracy = accuracy;
+    }
+
+    public int getAccuracy() {
+        return this.accuracy;
+    }
+
+    public void setOnTop(final boolean onTop) {
+        this.onTop = onTop;
+    }
+
+    public boolean isOnTop() {
+        return this.onTop;
+    }
+
+    public void setAutoSave(final boolean autoSave) {
+        this.autoSave = autoSave;
+    }
+
+    public boolean isAutoSave() {
+        return this.autoSave;
+    }
+
+    public void setLicense(final boolean license) {
+        this.license = license;
+    }
+
+    public boolean isLicense() {
+        return this.license;
+    }
+}