added Stacks algo java #hacktoberfest

JAVA/StacksJava/StackApp.java

@@ -0,0 +1,42 @@
+package Java.StacksJava;
+
+public class StackApp {
+    private long[] stackArray;
+    private int maxSize;
+    private int top;
+
+    public StackApp(int s) {
+        maxSize = s;
+        stackArray = new long[maxSize];
+        top = -1;
+    }
+
+    public void push(long i) {
+        stackArray[++top] = i;
+    }
+
+    public long peek() {
+        return stackArray[top];
+    }
+
+    public long pop() {
+        return stackArray[top--];
+    }
+
+    public boolean isEmpty() {
+        return (top == -1);
+    }
+
+    public boolean isFull() {
+        return (top == maxSize - 1);
+    }
+
+    public void display() {
+
+        for (int i = 0; i <= top; i++) {
+            System.out.print(stackArray[i] + " ");
+        }
+        System.out.println("");
+
+    }
+}

JAVA/StacksJava/Stacks.java

@@ -0,0 +1,33 @@
+package Java.StacksJava;
+
+public class Stacks {
+
+    public static void main(String[] args) {
+        StackApp my_stack = new StackApp(10);
+
+        my_stack.push(10);
+        my_stack.push(20);
+        my_stack.push(40);
+        my_stack.push(30);
+        System.out.println(my_stack.peek());
+        my_stack.display();
+        my_stack.push(60);
+        my_stack.push(80);
+        my_stack.display();
+        System.out.println(my_stack.pop());
+        my_stack.display();
+        my_stack.push(100);
+        my_stack.push(50);
+        my_stack.push(90);
+        my_stack.display();
+
+        while (!my_stack.isEmpty()) {
+            long value = my_stack.pop();
+            System.out.print(value);
+            System.out.print(" ");
+
+        }
+        System.out.println("");
+    }
+
+}

Python/downloadsManager.py

@@ -0,0 +1,99 @@
+import os
+import shutil
+import platform
+
+# function to run on linux
+
+
+def runLinux():
+    print("on Linux")
+    linuxUsername = str(os.getlogin())
+    linuxDirectory = "/home/" + linuxUsername + "/Downloads"
+    os.chdir(linuxDirectory)
+
+    for f in os.listdir(linuxDirectory):
+        fileSource = str(os.getcwd()) + "/" + str(f)
+        fileTypeSplitList = list(os.path.splitext(f))
+        fileType = fileTypeSplitList[1]
+        if(fileType == '.torrent'):
+            if not (os.path.isdir("Torrents")):
+                os.mkdir("Torrents")
+            shutil.move(fileSource, os.getcwd() + "/" + "Torrents")
+        elif(fileType == '.mp3' or fileType == '.wav'):
+            if not (os.path.isdir("Music")):
+                os.mkdir("Music")
+            shutil.move(fileSource, os.getcwd() + "/" + "Music")
+        elif(fileType == '.mp4' or fileType == '.wmv' or fileType == '.ogg'):
+            if not (os.path.isdir("Videos")):
+                os.mkdir("Videos")
+            shutil.move(fileSource, os.getcwd() + "/" + "Videos")
+        elif(fileType == '.deb'):
+            if not (os.path.isdir("Softwares")):
+                os.mkdir("Softwares")
+            shutil.move(fileSource, os.getcwd() + "/" + "Softwares")
+        elif(fileType == '.tar' or fileType == '.7z' or fileType == '.rar' or fileType == '.zip'):
+            if not (os.path.isdir("Softwares")):
+                os.mkdir("Softwares")
+            shutil.move(fileSource, os.getcwd() + "/" + "Softwares")
+        elif(fileType == '.png' or fileType == '.jpg' or fileType == '.jpeg' or fileType == '.gif'):
+            if not (os.path.isdir("Images")):
+                os.mkdir("Images")
+            shutil.move(fileSource, os.getcwd() + "/" + "Images")
+        elif(fileType == '.pdf'):
+            if not (os.path.isdir("PDF_Documents")):
+                os.mkdir("PDF_Documents")
+            shutil.move(fileSource, os.getcwd() + "/" + "PDF_Documents")
+
+# function to run on windows
+
+
+def runWindows():
+    print("on windows")
+    windowsUsername = str(os.getlogin())
+    windowsDirectory = "C:/Users/" + windowsUsername + "/Downloads"
+    os.chdir(windowsDirectory)
+
+    for f in os.listdir():
+        file_source = str(os.getcwd()) + "\\" + str(f)
+        file_source = str(file_source.replace("\\", "/"))
+        splitList = list(os.path.splitext(f))
+        file_type = splitList[1]
+
+        if(file_type == '.torrent'):
+            if not (os.path.isdir("Torrents")):
+                os.mkdir("Torrents")
+            shutil.move(file_source, os.getcwd() + "\\" + "Torrents")
+
+        elif(file_type == '.mp3'):
+            if not (os.path.isdir("Music")):
+                os.mkdir("Music")
+            shutil.move(file_source, os.getcwd() + "\\" + "Music")
+
+        elif(file_type == '.mp4'):
+            if not (os.path.isdir("Videos")):
+                os.mkdir("Videos")
+            shutil.move(file_source, os.getcwd() + "\\" + "Videos")
+
+        elif(file_type == '.zip' or file_type == '.rar'):
+            if not (os.path.isdir("Archives")):
+                os.mkdir("Archives")
+            shutil.move(file_source, os.getcwd() + "\\" + "Archives")
+
+        elif(file_type == '.exe'):
+            if not (os.path.isdir("EXE")):
+                os.mkdir("EXE")
+            shutil.move(file_source, os.getcwd() + "\\" + "EXE")
+
+
+def runMac():
+    print("Since i cannot afford an apple computer to implement the function ,u cannot manage your downloads :-(")
+
+
+operatingSystem = platform.system()
+
+if(operatingSystem == 'Linux'):
+    runLinux()
+elif(operatingSystem == 'Windows'):
+    runWindows()
+else:
+    runMac()