Java Utililty Methods Class New Instance

List of utility methods to do Class New Instance

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Description

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

Method

ObjectnewInstance(String className)
new Instance 
return forName(className).newInstance();
TnewInstance(String className)
new Instance 
Class<T> clazz = forName(className);
return newInstance(clazz);
ObjectnewInstance(String className)
new Instance 
return newInstance(fetchClass(className));
ObjectnewInstance(String className)
Return a new instance of the class using the default constructor. 
try {
    Class<?> cls = Class.forName(className);
    return cls.newInstance();
} catch (Exception e) {
    String msg = "Error constructing " + className;
    throw new IllegalArgumentException(msg, e);
ObjectnewInstance(String className)
new Instance 
Object object = null;
try {
    object = (Object) Class.forName(className).newInstance();
} catch (ClassNotFoundException e) {
    ClassLoader cl = Thread.currentThread().getContextClassLoader();
    object = (Object) cl.loadClass(className).newInstance();
return object;
...
TnewInstance(String className)
new Instance 
return newInstance(ClassLoader.getSystemClassLoader(), className);
ObjectnewInstance(String className)
New instance. 
Class<?> clazz;
try {
    clazz = Class.forName(className);
    return clazz.newInstance();
} catch (ClassNotFoundException e) {
    throw new RuntimeException(e);
} catch (InstantiationException e) {
    throw new RuntimeException(e);
...
TnewInstance(String className)
New target Object instance using the given Class name 
try {
    return (T) Class.forName(className).newInstance();
} catch (ClassNotFoundException | IllegalAccessException | InstantiationException e) {
    throw new IllegalArgumentException("Constructor could not be called", e);
EnewInstance(String className)
Instantiates a new instance of the class represented by the given className. 
if (className != null) {
    try {
        return (E) Class.forName(className).newInstance();
    } catch (InstantiationException e) {
    } catch (IllegalAccessException e) {
    } catch (ClassNotFoundException e) {
return null;
TnewInstance(String className)
new Instance 
return (T) Class.forName(className).newInstance();