Java Reflection - Method.getParameterCount() Examples

[Last Updated: Nov 8, 2025]

Class:

java.lang.reflect.Method

Method:

public int getParameterCount()

Returns the number of formal parameters (whether explicitly declared or implicitly declared or neither) for the method represented by this object.

Examples

package com.logicbig.example.method;

import java.lang.reflect.Method;

public class GetParameterCountExample {
    public static void process(int i, String s, String... args) {}

    public static void main(String... args) throws NoSuchMethodException {
        Method m = GetParameterCountExample.class
                .getDeclaredMethod("process", int.class, String.class, String[].class);
        int parameterCount = m.getParameterCount();
        System.out.println(parameterCount);
    }
}

Java Reflection - Method.getParameterCount() Examples

Class:

Method:

Examples

Output

See Also