diff --git a/BUNCH OF JAVA PROGRAMS/ae.java b/BUNCH OF JAVA PROGRAMS/ae.java
new file mode 100644
index 00000000..2cd22c11
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/ae.java	
@@ -0,0 +1,7 @@
+import java.util.*;
+class ae
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        
diff --git a/BUNCH OF JAVA PROGRAMS/aryan_22.class b/BUNCH OF JAVA PROGRAMS/aryan_22.class
new file mode 100644
index 00000000..7d37e77e
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/aryan_22.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/aryan_22.ctxt b/BUNCH OF JAVA PROGRAMS/aryan_22.ctxt
new file mode 100644
index 00000000..5c41a29c
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/aryan_22.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=aryan_22
+comment1.params=
+comment1.target=void\ main()
+numComments=2
diff --git a/BUNCH OF JAVA PROGRAMS/aryan_22.java b/BUNCH OF JAVA PROGRAMS/aryan_22.java
new file mode 100644
index 00000000..84d48a7d
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/aryan_22.java	
@@ -0,0 +1,43 @@
+
+import java.util.*;
+class aryan_22
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter a sentence");
+        String str=sc.next()+" ";
+        char ch;
+        String w="";
+        int l=str.length();
+        
+        for(int i=0;i<l;i++)
+        {
+            ch=str.charAt(i);
+            if(ch!=' ')
+            {
+                if(ch=='A')
+                ch='E';
+                if(ch=='E')
+                ch='I';
+                if(ch=='I')
+                ch='O';
+                if(ch=='O')
+                ch='U';
+                if(ch=='U')
+                ch='A';
+            }
+            else
+            {
+                str+=w;
+                w="";
+            }
+            System.out.println(str);
+        }
+    }
+}
+
+
+                
+                
+           
\ No newline at end of file
diff --git a/BUNCH OF JAVA PROGRAMS/border_elements.class b/BUNCH OF JAVA PROGRAMS/border_elements.class
new file mode 100644
index 00000000..849b8dbb
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/border_elements.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/border_elements.ctxt b/BUNCH OF JAVA PROGRAMS/border_elements.ctxt
new file mode 100644
index 00000000..34605839
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/border_elements.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=border_elements
+comment1.params=
+comment1.target=void\ main()
+numComments=2
diff --git a/BUNCH OF JAVA PROGRAMS/border_elements.java b/BUNCH OF JAVA PROGRAMS/border_elements.java
new file mode 100644
index 00000000..d3e6638e
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/border_elements.java	
@@ -0,0 +1,36 @@
+import java.util.*;
+class border_elements
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter value of 'n'");
+        int n=sc.nextInt();
+        int arr[][]=new int[n][n],s=0;
+        System.out.println("Enter the numbers");
+        for(int i=0;i<n;i++)
+        {
+            for(int j=0;j<n;j++)
+            {
+                arr[i][j]=sc.nextInt();
+                s+=arr[i][j];
+            }
+        }
+        int s1=0;
+        System.out.println("     THE OUTPUT    ");
+         for(int i=0;i<n;i++)
+        {
+            for(int j=0;j<n;j++)
+            {
+             if(i==0||i==(n-1)||j==0||j==(n-1))
+             {
+                 s1+=arr[i][j];
+                 System.out.print(arr[i][j]);
+                }
+               System.out.print("     ");
+            }
+            System.out.println();
+        }
+        System.out.println("The sum of internal no.s = "+(s-s1));
+    }
+}
diff --git a/BUNCH OF JAVA PROGRAMS/cyclic.class b/BUNCH OF JAVA PROGRAMS/cyclic.class
new file mode 100644
index 00000000..f22af97a
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/cyclic.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/cyclic.ctxt b/BUNCH OF JAVA PROGRAMS/cyclic.ctxt
new file mode 100644
index 00000000..be8b4180
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/cyclic.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=cyclic
+comment1.params=
+comment1.target=void\ main()
+numComments=2
diff --git a/BUNCH OF JAVA PROGRAMS/cyclic.java b/BUNCH OF JAVA PROGRAMS/cyclic.java
new file mode 100644
index 00000000..e39dd112
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/cyclic.java	
@@ -0,0 +1,29 @@
+import java.util.*;
+class cyclic
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter the no. of numbers");
+        int n=sc.nextInt();
+        int arr[]=new int [n];
+        int temp;
+        System.out.println("Enter the numbers");
+        for(int i=0;i<n;i++)
+        {
+            arr[i]=sc.nextInt();
+            
+        }
+        for(int i=0;i<n-1;i++)
+        {
+            temp=arr[i];
+            arr[i]=arr[n-1];
+            arr[n-1]=temp;
+        }
+        for(int i=0;i<n;i++)
+        {
+            System.out.println(arr[i]);
+        }
+            
+    }
+}
diff --git a/BUNCH OF JAVA PROGRAMS/decimal_to_binary.class b/BUNCH OF JAVA PROGRAMS/decimal_to_binary.class
new file mode 100644
index 00000000..14d33948
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/decimal_to_binary.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/decimal_to_binary.ctxt b/BUNCH OF JAVA PROGRAMS/decimal_to_binary.ctxt
new file mode 100644
index 00000000..046a297d
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/decimal_to_binary.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=decimal_to_binary
+comment1.params=
+comment1.target=void\ main()
+numComments=2
diff --git a/BUNCH OF JAVA PROGRAMS/decimal_to_binary.java b/BUNCH OF JAVA PROGRAMS/decimal_to_binary.java
new file mode 100644
index 00000000..c2175376
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/decimal_to_binary.java	
@@ -0,0 +1,25 @@
+import java.util.*;
+class decimal_to_binary
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter a Number");
+        int n=sc.nextInt();
+        String str="";
+        int k=n;
+        for(int j=0;j>=0;j++)
+        {
+            str=(k%2)+str;
+            k=k/2;
+            if(k/2==0)
+            {
+              str=(k)+str; 
+              break;
+        }
+    }
+        System.out.println(str);
+    
+}
+}
+             
\ No newline at end of file
diff --git a/BUNCH OF JAVA PROGRAMS/duplicate.class b/BUNCH OF JAVA PROGRAMS/duplicate.class
new file mode 100644
index 00000000..f594d9d2
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/duplicate.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/duplicate.ctxt b/BUNCH OF JAVA PROGRAMS/duplicate.ctxt
new file mode 100644
index 00000000..4f8abfde
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/duplicate.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=duplicate
+comment1.params=
+comment1.target=void\ main()
+numComments=2
diff --git a/BUNCH OF JAVA PROGRAMS/duplicate.java b/BUNCH OF JAVA PROGRAMS/duplicate.java
new file mode 100644
index 00000000..9d8e1531
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/duplicate.java	
@@ -0,0 +1,45 @@
+import java.util.*;
+class duplicate
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter the value of n ");
+        int n=sc.nextInt();
+        int arr[]=new int[n];
+        int arr2[]=new int[n];
+        int count=0,k=0;
+        System.out.println("Enter the numbers");
+        for(int i=0;i<n;i++)
+        {
+            arr[i]=sc.nextInt();
+            
+        }
+        for(int i=0;i<n;i++)
+        {
+            int no=arr[i];
+            for(int j=0;j<n;j++)
+            {
+                if (no==arr[j])
+                {
+                    count++;
+                }
+            }
+            if(count==1)
+            {
+                arr2[k++]=no;
+            }
+            count=0;
+        }
+            
+        for(int i=0;i<n;i++)
+        {
+            System.out.println(arr2[k]);
+        }
+    }
+}
+            
+        
+        
+        
+        
diff --git a/BUNCH OF JAVA PROGRAMS/fgh.class b/BUNCH OF JAVA PROGRAMS/fgh.class
new file mode 100644
index 00000000..47c7f5b2
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/fgh.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/fgh.ctxt b/BUNCH OF JAVA PROGRAMS/fgh.ctxt
new file mode 100644
index 00000000..6da06f6b
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/fgh.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=fgh
+comment1.params=
+comment1.target=void\ main()
+numComments=2
diff --git a/BUNCH OF JAVA PROGRAMS/fgh.java b/BUNCH OF JAVA PROGRAMS/fgh.java
new file mode 100644
index 00000000..a37e1855
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/fgh.java	
@@ -0,0 +1,39 @@
+import java.util.*;
+class fgh
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter the value of n ");
+        int n=sc.nextInt();
+        int arr[]=new int[n];
+        int arr2[]=new int[n];
+        int count,k=0;
+        System.out.println("Enter the numbers");
+        for(int i=0;i<n;i++)
+        {
+            arr[i]=sc.nextInt();
+        }
+        for(int i=0;i<n;i++)
+        {
+            int m=arr[i];
+            count=0;
+            for(int j=0;j<=i;j++)
+            {
+                if(arr[j]==arr[i])
+                {
+                    count++;
+                }
+            }
+            if(count>1)
+            {
+                continue;
+            }
+            else
+            {
+                System.out.println(m);
+        }
+            
+    }
+}
+}
diff --git a/BUNCH OF JAVA PROGRAMS/first.class b/BUNCH OF JAVA PROGRAMS/first.class
new file mode 100644
index 00000000..5c12e1bd
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/first.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/first.ctxt b/BUNCH OF JAVA PROGRAMS/first.ctxt
new file mode 100644
index 00000000..b23ac029
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/first.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=first
+comment1.params=
+comment1.target=void\ main()
+numComments=2
diff --git a/BUNCH OF JAVA PROGRAMS/first.java b/BUNCH OF JAVA PROGRAMS/first.java
new file mode 100644
index 00000000..aa41f6b1
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/first.java	
@@ -0,0 +1,30 @@
+import java.util.*;
+class first
+{
+    public static void main()
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println(" Enter a sentence in uppercase");
+        String str=sc.next();
+        str=str.toUpperCase();
+        char ch;
+        String word="JAKA";
+        for(int i=0;i<str.length();i++)
+        {
+            ch=str.charAt(i);
+            if(ch==' ')
+            {
+                System.out.print(word.charAt(0));
+                
+                
+            }
+            if(ch!=' ')
+            {
+                word+=ch;
+            }
+        }
+    }
+}
+        
+            
+        
\ No newline at end of file
diff --git a/BUNCH OF JAVA PROGRAMS/half.class b/BUNCH OF JAVA PROGRAMS/half.class
new file mode 100644
index 00000000..c942d6bc
Binary files /dev/null and b/BUNCH OF JAVA PROGRAMS/half.class differ
diff --git a/BUNCH OF JAVA PROGRAMS/half.ctxt b/BUNCH OF JAVA PROGRAMS/half.ctxt
new file mode 100644
index 00000000..3e4b6cdf
--- /dev/null
+++ b/BUNCH OF JAVA PROGRAMS/half.ctxt	
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=half
+comment1.params=args
+comment1.target=void\ main(java.lang.String[])
+numComments=2