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:
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" );
}
} |
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
Example 2: Program to check whether class contains a certain specific method.
/* * 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" );
}
} |
Class Object Contains Method whose name is method1
Reference:
https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html#getName–