Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    /**
     * Checks whether a {@code Constructor} object with no parameter types is specified
     * by the invoked {@code Class} object or not.
     *
     * @param clazz the {@code Class} object whose constructors are checked.
     * @return {@code true} if a {@code Constructor} object with no parameter types is specified.
     * @throws SecurityException If a security manager, <i>s</i> is present and any of the
     *         following conditions is met:
     *         <ul>
     *             <li> invocation of
     *             {@link SecurityManager#checkMemberAccess
     *             s.checkMemberAccess(this, Member.PUBLIC)} denies
     *             access to the constructor
     *
     *             <li> the caller's class loader is not the same as or an
     *             ancestor of the class loader for the current class and
     *             invocation of {@link SecurityManager#checkPackageAccess
     *             s.checkPackageAccess()} denies access to the package
     *             of this class
     *         </ul>
     *
     * @see {@link Class#getConstructor(Class...)}
     */
    public static boolean hasDefaultConstructor(Class<?> clazz) throws SecurityException {
        Class<?>[] empty = {};
        try {
            clazz.getConstructor(empty);
        } catch (NoSuchMethodException e) {
            return false;
        }
        return true;
    }
}