Initial commit

Example_src/Chapter1-10/src/ch02/Testvalue.java

@@ -0,0 +1,12 @@
+package ch02;
+
+public class Testvalue {
+    public static void main(String args[]) {
+        long lng = 12345678;
+        int int1 = 100;
+        String str1 = String.valueOf(lng);
+        String str2 = Integer.toString(int1, 16).toUpperCase();
+        System.out.println(str1);
+        System.out.println(str2);
+    }
+}