Java Utililty Methods Class InstanceOf

List of utility methods to do Class InstanceOf

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Description

The list of methods to do Class InstanceOf are organized into topic(s).

Method

booleaninstanceOf(Class clazz, Class superClass)
instance Of 
return clazz != null && superClass != null && clazz.isAssignableFrom(superClass);
booleaninstanceOf(Class clazz, Class target)
instance Of 
if (clazz == null)
    return false;
if (clazz == target)
    return true;
if (target.isInterface()) {
    for (Class aClass : clazz.getInterfaces()) {
        if (aClass == target)
            return true;
...
booleaninstanceOf(Class left, Class right)
Check if left type is same type or subtype of right type using same conventions as java instanceof expression but apply to type. 
return left.isAssignableFrom(right);
booleaninstanceOf(Class tester, Class instance)
instance Of 
try {
    tester.asSubclass(instance);
    return true;
} catch (Exception ignored) {
return false;
booleaninstanceOf(Class beanClass, Object element)
instance Of 
return element != null && beanClass.isAssignableFrom(element.getClass());
booleaninstanceOf(Class objectClass, Class typeClass)
Tests if a class is the same class as, or sub-class of, or implements typeClass. 
if (objectClass == typeClass) {
    return true;
if (objectClass.isInterface()) {
    if (typeClass.isInterface()) {
        Class<?>[] ifaces = objectClass.getInterfaces();
        for (Class<?> iface : ifaces) {
            if (iface == typeClass) {
...
booleaninstanceOf(Class parant, Class chield)
instance Of 
if (parant == null)
    throw new NullPointerException("parant is null");
if (chield == null)
    throw new NullPointerException("chield is null");
if (parant.equals(chield))
    return true;
return parant.isAssignableFrom(chield);
booleaninstanceOf(Class test, Class clazz)
Checks if a class is instance of an other class. 
if (test.equals(clazz))
    return true;
for (Class<?> i : test.getInterfaces()) {
    if (i.equals(clazz))
        return true;
return false;
booleaninstanceOf(final Class classVerifiable, final Class classAssignable)
The instanceof command is used to determine if a Java class is of a given type. 
return classAssignable.isAssignableFrom(classVerifiable);
booleaninstanceOf(final Object a, final Class b)
instance Of 
return b.isInstance(a);