The Value of 0xFF Number and Its Uses With & Operation in Java Article by Abdallah Sawan

java-numbers-5/src/main/java/com/baeldung/Main.java

@@ -0,0 +1,23 @@
+package com.baeldung;
+
+public class Main {
+
+    public static void main(String[] args) {
+        int x = 0xff;
+        System.out.println(x); // output is 255
+
+        byte y = (byte) 0xff;
+        System.out.println(y); // output is -1
+
+        int rgba = 272214023;
+        int r = rgba >> 24;
+        int g = rgba >> 16 & 0xFF;
+        int b = rgba >> 8 & 0xFF;
+        int a = rgba & 0xFF;
+
+        System.out.println(r); // output is 64
+        System.out.println(g); // output is 57
+        System.out.println(b); // output is 168
+        System.out.println(a); // output is 7
+    }
+}