【情况一】:在静态方法中引用了一个非静态方法 报错:Non-static method 'xxx()' cannot be referenced from a static context 形如: 代码语言:javascript 代码运行次数:0 publicclassMyClass{publicvoidnonStaticMethod(){// 非静态方法实现}publicstatic
Non-static method 'xxx()' cannot be referenced from a static context 形如: public class MyClass { public void nonStaticMethod() { // 非静态方法实现 } public static void staticMethod() { // 在静态方法中引用非静态方法,会导致错误 nonStaticMethod(); // 错误:Non-static method 'nonStaticMethod...
在解决非静态方法问题之前,让我们先了解一下 Java 中静态上下文的概念。 在Java中,关键字“ static ”用于声明属于类而不是实例的元素。静态成员在类的所有实例之间共享,并且无需创建该类的对象即可访问。 然而,另一方面,非静态方法与类的实例相关联,并且在不创建对象的情况下无法调用。它们可以依赖于对象的特定状态...
If you ever implemented a Java program with a main method, you have in fact written a special type of static method: the main method. Since main is the entry point of the Java program, there is no instance created yet and main method needs to be static. View...
Java中的 static 关键字主要是用来做内存管理的。理解了这句话才能够比较深入地理解static。 static 可以修饰: 变量(所谓 class variable) 方法(所谓 class method) 代码块(所谓 block) 内部类(所谓 nested class) 凡是被 static 修饰的这四种元素,都属于class的元素,即类的,而不是类的实例的。
Java is a Object Oriented Programming(OOP) language, which is often interpreted that we need objects to access methods and variables of a class, however this is not always true. While discussing static keyword in java, we learned that static members are
一、问题的解决: on-static method getLastRow() cannot be referenced from a static context问题的出现主要由于是main方法是静态的,如果你在main方法中直接调用一个非静态方法这是不合法的。那么系统就会直接报错。如上述例子中的A.test(1,3);会报错。
1//Program to get cube of a given number by static method2classCalculate{3staticintcube(intx){4returnx*x*x;5}67publicstaticvoidmain(String args[]){8intresult=Calculate.cube(5);9System.out.println(result);10}11} 静态方法的两个注意点: ...
Output of program: How to call a static method in Java? If you wish to call a static method of another class, then you have to mention the class name while calling it as shown in the example: importjava.lang.Math; classAnother{ ...
This page explains public static void main in Java. Main method in Java program must be declared public static and void. If this is not done, Java program will compile successfully but not execute. Keyword static allows main to be called without creating