引用
数组转Arraylist
private static String[] items={"lorem", "ipsum", "dolor","sit", "amet", "consectetuer","adipiscing", "elit", "morbi","vel", "ligula", "vitae","arcu", "aliquet", "mollis","etiam", "vel", "erat","placerat", "ante","porttitor", "sodales","pellentesque", "augue","purus"};
ArrayList<String> itemStrs=new ArrayList(Arrays.asList(items));
引用
ArrayList转数组
ArrayList<String> list=new ArrayList<String>();
for(int i=0;i<5;i++){
list.add("Number :"+(i+10));
}
String[] con=new String[list.size()];
con=(String[]) list.toArray(new String[list.size()]);
引用
Java IOC
public class BeanUtils {
private BeanUtils() {
}
public static Object getFiledValue(final Object object,
final String fieldName){
Field field=getDeclaredField(object,fieldName);
if(field==null){
throw new IllegalArgumentException("Could not find field["+fieldName+"] on target [ "+object+" ]");
}
makeAccessible(field);
try {
return field.get(object);
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public static void setFieldValue(final Object object,
final String fieldName, final Object value) {
Field field = getDeclaredField(object, fieldName);
if (field == null)
throw new IllegalArgumentException("Could not find field ["
+ fieldName + "] on target [" + object + "]");
makeAccessible(field);
try {
field.set(object, value);
} catch (IllegalAccessException e) {
}
}
protected static Field getDeclaredField(final Object object,
final String fieldName) {
return getDeclaredField(object.getClass(), fieldName);
}
protected static Field getDeclaredField(final Class clazz,
final String fieldName) {
for (Class superClass = clazz; superClass != Object.class; superClass = superClass
.getSuperclass()) {
try {
return superClass.getDeclaredField(fieldName);
} catch (NoSuchFieldException e) {
}
}
return null;
}
protected static void makeAccessible(Field field) {
if (!Modifier.isPublic(field.getModifiers())
|| !Modifier.isPublic(field.getDeclaringClass().getModifiers())) {
field.setAccessible(true);
}
}
}
位于/data/misc/wifi/下
某某.conf,一般是wpa_supplicant.conf