diff --git a/assignments/assignment4/numbers.java b/assignments/assignment4/numbers.java
new file mode 100644
index 0000000..58cc859
--- /dev/null
+++ b/assignments/assignment4/numbers.java
@@ -0,0 +1,32 @@
+import java.util.Scanner;
+import java.util.ArrayList;
+
+public class numbers {
+    public static void main(String[] args) {
+        ArrayList<Integer> numbers = new ArrayList<Integer>();
+        Scanner scan = new Scanner(System.in);
+        int count = 0;
+        System.out.println("Please enter How many integer in list ?");
+        count = scan.nextInt();
+        int temp1 = count;
+
+        while (temp1 > 0) {
+            System.out.println("Enter integers !");
+            int i = scan.nextInt();
+            numbers.add(i);
+            temp1--;
+        }
+        System.out.println(numbers);
+        temp1 = count-1;
+        int j = 0;
+        while(0 < temp1/2) {
+            int temp = numbers.get(j);
+            numbers.set(j, numbers.get(temp1));
+            numbers.set(temp1, temp);
+            j++;
+            temp1--;
+        }
+    
+        System.out.println(numbers);
+    }
+}
\ No newline at end of file
diff --git a/labs/lab5/## IF STATEMENT.txt b/labs/lab5/## IF STATEMENT.txt
new file mode 100644
index 0000000..ce3eb8a
--- /dev/null
+++ b/labs/lab5/## IF STATEMENT.txt	
@@ -0,0 +1,48 @@
+## IF STATEMENT
+
+import java.util.Scanner;
+import java.text.NumberFormat;
+
+public class Salary 
+{ 
+    public static void main (String[] args) 
+    { 
+        double currentSalary;  // employee's current salary 
+        double raise = 0;      // amount of the raise (initialized to 0)
+        double newSalary;      // new salary for the employee 
+        String rating;         // performance rating 
+        Scanner scan = new Scanner(System.in); 
+        
+        System.out.print("Enter the current salary: "); 
+        currentSalary = scan.nextDouble(); 
+        
+        // Consume the newline character left by nextDouble
+        scan.nextLine();
+        
+        System.out.print("Enter the performance rating (Excellent, Good, or Poor): "); 
+        rating = scan.nextLine(); 
+        
+        // Compute the raise using if-else
+        if (rating.equals("Excellent")) {
+            raise = currentSalary * 0.06;  // 6% raise for Excellent
+        } else if (rating.equals("Good")) {
+            raise = currentSalary * 0.04;  // 4% raise for Good
+        } else if (rating.equals("Poor")) {
+            raise = currentSalary * 0.015; // 1.5% raise for Poor
+        } else {
+            System.out.println("Invalid rating entered.");
+            return;  // Exit the program if the rating is not valid
+        }
+
+        // Compute the new salary
+        newSalary = currentSalary + raise;
+
+        // Print the results
+        NumberFormat money = NumberFormat.getCurrencyInstance(); 
+        System.out.println(); 
+        System.out.println("Current Salary:       " + money.format(currentSalary)); 
+        System.out.println("Amount of your raise: " + money.format(raise)); 
+        System.out.println("Your new salary:      " + money.format(newSalary)); 
+        System.out.println(); 
+    } 
+}
diff --git a/labs/lab5/## IF STATEMENT.txtZone.Identifier b/labs/lab5/## IF STATEMENT.txtZone.Identifier
new file mode 100644
index 0000000..f46bcc4
--- /dev/null
+++ b/labs/lab5/## IF STATEMENT.txtZone.Identifier	
@@ -0,0 +1,2 @@
+[ZoneTransfer]
+ZoneId=3
diff --git a/labs/lab5/FOR LOOP & SWITCH-CASE.txt b/labs/lab5/FOR LOOP & SWITCH-CASE.txt
new file mode 100644
index 0000000..1e85559
--- /dev/null
+++ b/labs/lab5/FOR LOOP & SWITCH-CASE.txt	
@@ -0,0 +1,86 @@
+//FOR LOOP & SWITCH-CASE
+import java.util.Scanner;
+
+public class Count
+{
+    public static void main (String[] args)
+    {
+        String phrase;    // a string of characters
+        int countBlank;   // the number of blanks (spaces) in the phrase
+        int countA;       // the number of 'a' and 'A'
+        int countE;       // the number of 'e' and 'E'
+        int countS;       // the number of 's' and 'S'
+        int countT;       // the number of 't' and 'T'
+        int length;       // the length of the phrase
+        char ch;          // an individual character in the string
+        Scanner scan = new Scanner(System.in);
+
+        // Print a program header
+        System.out.println ();
+        System.out.println("Character Counter");
+        System.out.println();
+
+        // Outer while loop to keep asking for phrases until "quit"
+        while (true) {
+            System.out.print("Enter a sentence or phrase (or type 'quit' to exit): ");
+            phrase = scan.nextLine();
+
+            // Exit if user types "quit"
+            if (phrase.equalsIgnoreCase("quit")) {   // Capital-lower letter ignore
+                break;
+            }
+
+            // Initialize counts for each new phrase
+            countBlank = 0;
+            countA = 0;
+            countE = 0;
+            countS = 0;
+            countT = 0;
+
+            // Get the length of the phrase
+            length = phrase.length();
+
+            // Loop through each character in the phrase
+            for (int i = 0; i < length; i++) {
+                ch = phrase.charAt(i); // get character at position i
+
+                // Use switch statement to count occurrences of specific characters
+                switch (ch) {
+                    case 'a':
+                    case 'A':
+                        countA++;
+                        break;
+                    case 'e':
+                    case 'E':
+                        countE++;
+                        break;
+                    case 's':
+                    case 'S':
+                        countS++;
+                        break;
+                    case 't':
+                    case 'T':
+                        countT++;
+                        break;
+                    case ' ':
+                        countBlank++;  // count spaces
+                        break;
+                    default:
+                        // Do nothing for other characters
+                        break;
+                }
+            }
+
+            // Print the results
+            System.out.println();
+            System.out.println("Number of blank spaces: " + countBlank);
+            System.out.println("Number of 'a'/'A': " + countA);
+            System.out.println("Number of 'e'/'E': " + countE);
+            System.out.println("Number of 's'/'S': " + countS);
+            System.out.println("Number of 't'/'T': " + countT);
+            System.out.println();
+        }
+
+        System.out.println("Goodbye!"); // Print a goodbye message when exiting
+    }
+}
diff --git a/labs/lab5/FOR LOOP & SWITCH-CASE.txtZone.Identifier b/labs/lab5/FOR LOOP & SWITCH-CASE.txtZone.Identifier
new file mode 100644
index 0000000..f46bcc4
--- /dev/null
+++ b/labs/lab5/FOR LOOP & SWITCH-CASE.txtZone.Identifier	
@@ -0,0 +1,2 @@
+[ZoneTransfer]
+ZoneId=3
diff --git a/labs/lab5/WHILE LOOP.txt b/labs/lab5/WHILE LOOP.txt
new file mode 100644
index 0000000..b6a5119
--- /dev/null
+++ b/labs/lab5/WHILE LOOP.txt	
@@ -0,0 +1,31 @@
+// WHILE LOOP
+import java.util.Scanner;
+
+public class PowersOf2
+{
+    public static void main(String[] args)
+    {
+        int numPowersOf2;        // How many powers of 2 to compute
+        int nextPowerOf2 = 1;    // Current power of 2 (starting with 2^0 = 1)
+        int exponent = 0;        // Exponent for current power of 2 (starting with 0)
+        Scanner scan = new Scanner(System.in);
+
+        System.out.println("How many powers of 2 would you like printed?");
+        numPowersOf2 = scan.nextInt();
+
+        // Print a message saying how many powers of 2 will be printed
+        System.out.println("Here are the first " + numPowersOf2 + " powers of 2:");
+
+        // Print the powers of 2
+        while (exponent < numPowersOf2)
+        {
+            System.out.println("2^" + exponent + " = " + nextPowerOf2);
+
+            // Compute the next power of 2 by doubling the current one
+            nextPowerOf2 *= 2;
+
+            // Increment exponent
+            exponent++;
+        }
+    }
+}
diff --git a/labs/lab5/WHILE LOOP.txtZone.Identifier b/labs/lab5/WHILE LOOP.txtZone.Identifier
new file mode 100644
index 0000000..f46bcc4
--- /dev/null
+++ b/labs/lab5/WHILE LOOP.txtZone.Identifier	
@@ -0,0 +1,2 @@
+[ZoneTransfer]
+ZoneId=3