How to call method of another class in java

java calls a method of another class: 1. The class method is modified with static, the code is [public static void sayStatic()]; 2. The method without static modification, the code is [public void sayInstance()] .

java calls the method of another class:

The java class has two methods. One is the class method. One type of method modified with static is an instance method, which is a method without static modification. Class methods can be called with both class name and method name. The instance method must first exist in the instance of the class and then be called through instance.method name. For example:

public class MethodCall
{
    public static void main(String[] args)
    {
        Test.sayStatic();
        Test test = new Test();
        test.sayInstance();
    }
}
class Test
{
    public static void sayStatic()
    {
        System.out.println("这是一个静态方法。");
    }
    public void sayInstance()
    {
        System.out.println("这是一个实例方法。");
    }
}

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