Class.forName() load and initialize the class. In class loader subsystem it executes all the three phases i.e. load, link, and initialize phases.
ClassLoader.loadClass() behavior, which delays initialization until the class is used for the first time. In class loader subsystem it executes only two phases i.e. load and link phases.
For example:
class MyClass {
static {
System.out.println("static block in MyClass");
}
}
public class TestCase1 {
public static void main(String... args) throws Throwable {
Class.forName("A");
}
} //The above TestCase1 produce output: static block in MyClass
public class TestCase2 {
public static void main(String... args) throws Throwable {
ClassLoader.getSystemClassLoader().loadClass("MyClass");
}
} //The above TestCase2 not produce any output
