diff --git a/section4/README.md b/section4/README.md
index 2a7aa2c..5d44f24 100644
--- a/section4/README.md
+++ b/section4/README.md
@@ -175,7 +175,7 @@ public class Employee {
 }
 ```
 
-If the method is Non-Static and present inside the same calss then call that method with ObjectReferenceVariable.methodName()
+If the method is Non-Static and present inside the same class then call that method with ObjectReferenceVariable.methodName()
 ```java
 public class AithmeticOperations {
 
@@ -193,7 +193,7 @@ public class AithmeticOperations {
 
 }
 ```
-If the method is Non-Static and present outside calss then call that method with ObjectReferenceVariable.methodName()
+If the method is Non-Static and present outside class then call that method with ObjectReferenceVariable.methodName()
 ```java
 
 public class AithmeticOperations {