Closing scanners.

Others/Dijkshtra.java

@@ -80,5 +80,6 @@ public class Dijkshtra {
                 System.out.print("-1" + " ");
             }
         }
+        in.close();
     }
 }

Others/InsertDeleteInArray.java

@@ -44,5 +44,6 @@ public class InsertDeleteInArray {
         }
         for (i = 0; i < size2 - 1; i++)
             System.out.println(b[i]);
+        s.close();
     }
 }

Others/LowestBasePalindrome.java

@@ -29,6 +29,7 @@ public class LowestBasePalindrome {
         }
         System.out.println(n + " is a palindrome in base " + lowestBasePalindrome(n));
         System.out.println(base2base(Integer.toString(n), 10, lowestBasePalindrome(n)));
+        in.close();
     }
 
     /**

Others/PerlinNoise.java

@@ -162,5 +162,6 @@ public class PerlinNoise {
 
             System.out.println();
         }
+        in.close();
     }
 }

Others/PowerOfTwoOrNot.java

@@ -20,6 +20,7 @@ public class PowerOfTwoOrNot {
         } else {
             System.out.println("Number is not a power of two");
         }
+        sc.close();
     }
 
 
@@ -32,5 +33,4 @@ public class PowerOfTwoOrNot {
     public static boolean checkIfPowerOfTwoOrNot(int number) {
         return number != 0 && ((number & (number - 1)) == 0);
     }
-
 }

Others/ReturnSubsequence.java

@@ -13,6 +13,7 @@ public class ReturnSubsequence {
         for (int i = 0; i < subsequence.length; i++) {
             System.out.println(subsequence[i]);
         }
+        s.close();
     }
 
     /**

Others/RootPrecision.java

@@ -14,6 +14,8 @@ public class RootPrecision {
         // P is precision value for eg - P is 3 in 2.564 and 5 in 3.80870.
         int P = scn.nextInt();
         System.out.println(squareRoot(N, P));
+
+        scn.close();
     }
 
     public static double squareRoot(int N, int P) {

Others/SJF.java

@@ -67,6 +67,7 @@ class Schedule {
             processes.add(p);
             burstAll += p.burstTime;
         }
+        in.close();
 
     }
 

Others/StackPostfixNotation.java

@@ -7,6 +7,7 @@ public class StackPostfixNotation {
         Scanner scanner = new Scanner(System.in);
         String post = scanner.nextLine();   // Takes input with spaces in between eg. "1 21 +"
         System.out.println(postfixEvaluate(post));
+        scanner.close();
     }
 
     // Evaluates the given postfix expression string and returns the result.
@@ -35,6 +36,7 @@ public class StackPostfixNotation {
                 //  "+", "-", "*", "/"
             }
         }
+        tokens.close();
         return s.pop();
     }
 }

Others/TopKWords.java

@@ -82,6 +82,7 @@ public class TopKWords {
         for (int i = 0; i < k; i++) {
             System.out.println(list.get(list.size() - i - 1));
         }
+        input.close();
     }
 }
 

Others/TowerOfHanoi.java

@@ -22,5 +22,6 @@ class TowerOfHanoi {
         Scanner scanner = new Scanner(System.in);
         int numberOfDiscs = scanner.nextInt(); //input of number of discs on pole 1
         shift(numberOfDiscs, "Pole1", "Pole2", "Pole3"); //Shift function called
+        scanner.close();
     }
 }