Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import javax.swing.*;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import java.util.List;

public class Main {
    private static <T extends JComponent> T getComponentFromList(Class<T> clazz, List<T> list, String property,
            Object value) throws IllegalArgumentException {
        T retVal = null;
        Method method = null;
        try {
            method = clazz.getMethod("get" + property);
        } catch (NoSuchMethodException ex) {
            try {
                method = clazz.getMethod("is" + property);
            } catch (NoSuchMethodException ex1) {
                throw new IllegalArgumentException(
                        "Property " + property + " not found in class " + clazz.getName());
            }
        }
        try {
            for (T t : list) {
                Object testVal = method.invoke(t);
                if (equals(value, testVal)) {
                    return t;
                }
            }
        } catch (InvocationTargetException ex) {
            throw new IllegalArgumentException(
                    "Error accessing property " + property + " in class " + clazz.getName());
        } catch (IllegalAccessException ex) {
            throw new IllegalArgumentException(
                    "Property " + property + " cannot be accessed in class " + clazz.getName());
        } catch (SecurityException ex) {
            throw new IllegalArgumentException(
                    "Property " + property + " cannot be accessed in class " + clazz.getName());
        }
        return retVal;
    }

    /**
     * Convenience method for determining whether two objects are either
     * equal or both null.
     *
     * @param obj1 the first reference object to compare.
     * @param obj2 the second reference object to compare.
     * @return true if obj1 and obj2 are equal or if both are null,
     * false otherwise
     */
    public static boolean equals(Object obj1, Object obj2) {
        return obj1 == null ? obj2 == null : obj1.equals(obj2);
    }
}