updated

tomarcodinglife · tomarcodinglife · commit 9543c22bf02d · 2025-12-24T20:54:22.000+05:30
diff --git a/02dataTypes/Variables.java b/02dataTypes/Variables.java
@@ -0,0 +1,22 @@
+public class variables {
+    public static void main (String[] args) {
+
+        int myNumber = 20;
+        int yourNumber = 255;
+        int age = 20;
+        boolean isRealAge = true;
+        float myMarks = 70.0f;
+        double myHeight = 5.7;
+        String name = "Sujit Kumar Singh";
+
+
+        System.out.println(myNumber);
+        System.out.println(yourNumber);
+        System.out.println(age);
+        System.out.println(isRealAge);
+        System.out.println(myMarks);
+        System.out.println(myHeight);
+        System.out.println(name);
+
+    }
+}
diff --git a/README.md b/README.md
@@ -49,6 +49,16 @@ JDK is a complete kit for Java developers. (JDK = JRE, Javac or Java Compiler, D
 | boolean  | True or false                                 | 1 byte*      | boolean h = true;                | Boolean           |
 ---
 
+### Example 
+    int age = 20;
+    boolean isRealAge = true;
+    float myMarks = 70.0f;
+    double myHeight = 5.7;
+    String name = "Sujit Kumar Singh";
+    byte level = 3; (Use when Memory very need)
+    short year = 2025; (Use when memory need small but larger than byte)
+    long population = 140000000L; (Use only when required large value store in memory)
+
 ## Non Premitive Data Type
 
 | Data Type | Description                                   | Size    | Example                                  | Type                |
@@ -61,3 +71,5 @@ JDK is a complete kit for Java developers. (JDK = JRE, Javac or Java Compiler, D
 | Enum     | Set of named constants                         | Depends | enum Day { MON, TUE };                   | Special Class       |
 ---
 
+
+
