Here is the macro: #define IS_ALNUM(x) (((x)>=’a’ && (x) <= ‘z’)) ||((x)>=’A’ && (x) <= ‘Z’)) || (((x)>=’0′ && (x) <= ‘9’))) It tests if it is Between a and z Between A and Z Between 0 and 9 Quite simple 2 solved find the input is alphanumeric or not with using #define macro preprocessor … Read more
Here’s 3 solutions: the first two are somewhat arithmetic incrementations while the third is more a character manipulations. The 3 implementations all pass the same unit tests: assertEquals(“1DDA01A”, MyClass.increment(“1DDA00Z”)); assertEquals(“1A9AV00”, MyClass.increment(“1A9AU99”)); assertEquals(“AFH00”, MyClass.increment(“AFG99”)); assertEquals(“A2GF24”, MyClass.increment(“A2GF23”)); assertEquals(“ABAA0000”, MyClass.increment(“AAZZ9999”)); assertEquals(“11AB0A”, MyClass.increment(“11AA9Z”)); First: public static String increment(String number) { Pattern compile = Pattern.compile(“^(.*?)([9Z]*)$”); Matcher matcher = compile.matcher(number); String … Read more
You can’t increment alphanumeric values directly. if want to do so you need to write some lines of code for it here is activity_main.xml <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” xmlns:tools=”http://schemas.android.com/tools” android:layout_width=”match_parent” android:layout_height=”match_parent” tools:context=”.MainActivity” android:orientation=”vertical”> <TextView android:id=”@+id/txt_autoincreament” android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:text=”Hello World!” app:layout_constraintBottom_toBottomOf=”parent” app:layout_constraintLeft_toLeftOf=”parent” app:layout_constraintRight_toRightOf=”parent” app:layout_constraintTop_toTopOf=”parent” /> <Button android:layout_width=”match_parent” android:layout_height=”wrap_content” android:text=”click” android:onClick=”Click”/> </LinearLayout> here is MainActivity.java public class MainActivity … Read more
Need a code using regular expression in java –> String must be Captial letters(A-Z) and contain digits (0-9) [closed] solved Need a code using regular expression in java –> String must be Captial letters(A-Z) and contain digits (0-9) [closed]