Method Class | getName() Method in Java
Last Updated :
05 Dec, 2018
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The getName() method of java.lang.reflect.Method class is helpful to get the name of methods, as a String. To get name of all methods of a class, get all the methods of that class object. Then call getName() on those method objects.
Syntax:
Java
Java
public String getName()Return Value: It returns the name of the method, as String. Example:
Method:public void getValue(){}
getName() returns: getValue
Explanation: The getName() function on object of above method returns name of method
which is getValue.
Method:public void paint(){}
getName() returns: paint
Below programs illustrates getName() method of Method class:
Example 1: Print name of all methods of Method Object.
/*
* Program Demonstrate how to apply getName() method
* of Method Class.
*/
import java.lang.reflect.Method;
public class GFG {
// Main method
public static void main(String[] args)
{
try {
// create class object
Class classobj = GFG.class;
// get list of methods
Method[] methods = classobj.getMethods();
// get the name of every method present in the list
for (Method method : methods) {
String MethodName = method.getName();
System.out.println("Name of the method: "
+ MethodName);
}
}
catch (Exception e) {
e.printStackTrace();
}
}
// method name setValue
public static int setValue()
{
System.out.println("setValue");
return 24;
}
// method name getValue
public String getValue()
{
System.out.println("getValue");
return "getValue";
}
// method name setManyValues
public void setManyValues()
{
System.out.println("setManyValues");
}
}
Output:
Example 2: Program to check whether class contains a certain specific method.
Name of the method: main Name of the method: getValue Name of the method: setValue Name of the method: setManyValues Name of the method: wait Name of the method: wait Name of the method: wait Name of the method: equals Name of the method: toString Name of the method: hashCode Name of the method: getClass Name of the method: notify Name of the method: notifyAll
/*
* Program Demonstrate how to apply getName() method
* of Method Class within a class
*/
import java.lang.reflect.Method;
public class GFG {
// Main method
public static void main(String[] args)
{
String checkMethod = "method1";
try {
// create class object
Class classobj = democlass.class;
// get list of methods
Method[] methods = classobj.getMethods();
// get the name of every method present in the list
for (Method method : methods) {
String MethodName = method.getName();
if (MethodName.equals(checkMethod)) {
System.out.println("Class Object Contains"
+ " Method whose name is "
+ MethodName);
}
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}
// a simple class
class democlass {
public int method1()
{
return 24;
}
public String method2()
{
return "Happy hours";
}
public void method3()
{
System.out.println("Happy hours");
}
}
Output:
Reference:
https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html#getName--
Class Object Contains Method whose name is method1
