diff --git a/Others/Dijkshtra.java b/Others/Dijkshtra.java
index 741c9bd3a665..05011dd4212f 100644
--- a/Others/Dijkshtra.java
+++ b/Others/Dijkshtra.java
@@ -9,7 +9,7 @@
 import java.util.Scanner;
 import java.util.Stack;
 
-public class Solution {
+public class Dijkshtra {
 
 public static void main(String[] args) throws IOException {
 	  Scanner in =new Scanner(System.in);
diff --git a/Others/InsertDeleteInArray.java b/Others/InsertDeleteInArray.java
index 12bbdc192b1e..857020662b92 100644
--- a/Others/InsertDeleteInArray.java
+++ b/Others/InsertDeleteInArray.java
@@ -1,5 +1,5 @@
 import java.util.*;
-public class Array {
+public class InsertDeleteInArray {
 
 	public static void main(String[] args) {
 		Scanner s = new Scanner(System.in); // Input statement
diff --git a/Others/RootPrecision.java b/Others/RootPrecision.java
index 0ae00de0fbf3..b792d692f675 100644
--- a/Others/RootPrecision.java
+++ b/Others/RootPrecision.java
@@ -4,7 +4,7 @@
 import java.math.*;
 import java.util.regex.*;
 
-public class Solution {
+public class RootPrecision {
 
     public static void main(String[] args) {
 	//take input    
diff --git a/Others/StackPostfixNotation.java b/Others/StackPostfixNotation.java
index c04b0ac6b44d..be77eeadb69e 100644
--- a/Others/StackPostfixNotation.java
+++ b/Others/StackPostfixNotation.java
@@ -1,6 +1,6 @@
 import java.util.*;
 
-public class Postfix {
+public class StackPostfixNotation {
     public static void main(String[] args) {
          Scanner scanner = new Scanner(System.in);
         String post = scanner.nextLine();   // Takes input with spaces in between eg. "1 21 +"