public String toString() Java Copy参数。该方法不接受任何参数。返回值。该方法返回该对象的字符串表示。下面的程序演示了toString()方法。例1:// Java program to demonstrate toString() method public class Test { public static void main(String[] args) throws ClassNotFoundException { // returns the ...
com.javaer.examples.Girl@35960f05 我们发现ArrayList 直接输出,可以展示正常字符串。而Girl 就不太行了。显示com.javaer.examples.Girl@35960f05 因为Girl里面没有toString 方法。 ArrayList里有。 那么我们给Girl 加个方法 public String toString(){ return "ok,name:" + name + ",age:" + age; } 当然retur...
Locale.ToString Method Reference Feedback Definition Namespace: Java.Util Assembly: Mono.Android.dll Returns a string representation of this Locale object, consisting of language, country, variant, script, and extensions as below: <blockquote> language + "" + country + "" + (variant + "...
ToString(Object[]) Returns a string representation of the contents of the specified array. ToString(Boolean[]) Returns a string representation of the contents of the specified array. ToString(Byte[]) Returns a string representation of the contents of the specified array. ToString(Char[]) ...
A String object has a toString() method defined in it that returns the contents of the String's internal char array for concatenation. The int simply uses its inherent value as a primitive (although there may be some autoboxing happening there to Integer, but that would just end up calling...
ToString(Object[]) Returns a string representation of the contents of the specified array. ToString(Boolean[]) Returns a string representation of the contents of the specified array. ToString(Byte[]) Returns a string representation of the contents of the specified array. ToString(Char[]) ...
These four values may be obtained from the #getReferenceKind reference kind, #getDeclaringClass declaring class, #getName member name, and #getMethodType method type of a MethodHandleInfo object. Java documentation for java.lang.invoke.MethodHandleInfo.toString(int, java.lang.Class<?>, java.lang....
(重要)获得类中方法相关的方法(以下方法返回值为Method相关) 反射示例 获得Class对象的三种方式 在反射之前,我们需要做的第一步就是先拿到当前需要反射的类的Class对象,然后通过Class对象的核心方法,达到反射的目的,即:在运行状态中,对于任意一个类,都能够知道这个类的所有属性和方法;对于任意一个对象,都能够调用它...
I have created a Class which can add, subtract, multiply or divide two rational numbers. However I am struggling with the toString method. As I create the result in the main method, how do I finish my toString method as my compiler is telling me "result cannot be resolved to a variable...
本文详细解析了Java基础面试题,包括数据类型与变量、控制结构、面向对象编程等内容。文章还涵盖了常见的算法面试题,如排序和查找算法,并深入讲解了Java高级特性面试题,涉及异步编程、网络通信及反射机制等。此外,文章提供了设计模式和集合框架相关的面试题解析,并分享了面试技巧与经验。文中包含丰富的示例代码,帮助读者理...