Added Java Programs

java_codes/StringPalindrome.java

@@ -0,0 +1,23 @@
+public class StringPalindrome {
+    public static void main(String[] args) {
+        String str = "";
+        System.out.println(isPalindrome(str));
+
+    }
+    static boolean isPalindrome(String str){
+        int start = 0;
+        int end = str.length()-1;
+        if(str.length() == 0){
+            return true;
+        }
+        while(start<end){
+            if(str.charAt(start) == str.charAt(end)){
+                start++;
+                end--;
+            }else{
+                return false;
+            }
+        }
+        return true;
+    }
+}

java_codes/towerOfHanoi.java

@@ -0,0 +1,20 @@
+import java.util.Scanner;
+
+public class towerOfHanoi {
+    public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        int n= in.nextInt();
+        int t1id= in.nextInt();
+        int t2id= in.nextInt();
+        int t3id= in.nextInt();
+        toh(n,t1id,t2id,t3id);
+    }
+    static void toh(int n, int t1id , int t2id ,int t3id){
+        if(n == 0){
+            return;
+        }
+        toh(n-1 ,t1id, t3id, t2id);
+        System.out.println(n +"[" + t1id + " -> " + t2id + "]");
+        toh(n-1, t3id, t2id, t1id);
+    }
+}