importjava.lang.reflect.Field;publicclassReflectionExample{publicstaticvoidmain(String[] args)throwsNoSuchFieldException, IllegalAccessException {classMyClass{privateStringname="John Doe";privateintage=30; }MyClassmyObject=newMyClass();// 使用反射获取私有字段的值FieldnameField=MyClass.class.getDeclaredFie...
importjava.lang.reflect.Field;publicclassMain{publicstaticvoidmain(String[]args)throwsNoSuchFieldException,IllegalAccessException{Personperson=newPerson("Alice",25);StringfieldName="name";Objectvalue=getValueByFieldName(person,fieldName);System.out.println(fieldName+": "+value);fieldName="age";value=...
*@paramobject *@return*/privateString getFieldValueByFieldName(String fieldName, Object object) {try{ Field field=object.getClass().getDeclaredField(fieldName);//设置对象的访问权限,保证对private的属性的访问field.setAccessible(true);return(String)field.get(object); }catch(Exception e) {returnnull...
public Parion(String name, int age) { super(); = name; this.age = age; } @Override public String toString() { // TODO Auto-generated method stub return getName()+","+getAge(); //return super.toString(); } @Override public boolean equals(Object obj) { // TODO Auto-generated met...
String name="hello world";final String name="hello world"; Kotlin 代码语言:javascript 代码运行次数:0 运行 AI代码解释 varname="hello world"val name="hello world" null声明 Java 代码语言:javascript 代码运行次数:0 运行 AI代码解释 String otherName;otherName=null; ...
JDK中ObjectOuputStream和ObjectInputStream为输出输入流,只有实现SeriaLizable/Externalizable接口的类才能被序列化。如Person对象传递给内存流使用DataConstractJsonSeralizer, MemoryStream stream = new MemoryStream(); DataConstractJsonSeralizer SER = new DataConstractJsonSeralizer(typeof(person)); ser.writeObject...
Field.GetInt(Object) 方法 參考 意見反應 定義 命名空間: Java.Lang.Reflect 組件: Mono.Android.dll 取得型別的靜態或實例字段 int 值,或可透過擴大轉換轉換成型 int 別的另一個基本類型。 C# 複製 [Android.Runtime.Register("getInt", "(Ljava/lang/Object;)I", "")] public int GetInt(Java...
The hard limit for the value is 10,000. If an ArgumentIndex value is equal to or exceeds the upper limit, an IllegalArgumentException will now be thrown by MessageFormats constructors applyPattern(String pattern) instance method format(String pattern, Object... arguments) static method De-...
AccessibleObject 数组 构造函数 Executable Executable.InterfaceConsts 字段 字段 属性 方法 获取 GetAnnotation GetBoolean GetByte GetChar GetDouble GetFloat GetInt GetLong GetShort IsAnnotationPresent 设置 SetBoolean SetByte SetChar SetDouble SetFloat ...
* @param fieldName 字段名称,支持多级,如:name person.student.className * @param data 需要从里面提前字段值的对象 */ public static Object recursionGetFieldValueByReflect(String fieldName, Object data) throws Exception { // fieldName 是否包含 , ...