The getName() method of the Thread class is used to retrieve the name of a thread. It helps in identifying threads during execution, especially useful for debugging and logging in multithreaded applications.
- Returns the name of the current thread
- Commonly used for debugging and logging
- Default thread names are like Thread-0, Thread-1, etc.
class MyThread extends Thread {
public void run() {
System.out.println("Thread name: " + getName());
}
public static void main(String[] args) {
MyThread t1 = new MyThread();
t1.start();
}
}
Output
Thread name: Thread-0
Explanation: The getName() method fetches and prints the name of the thread. If no custom name is set, it displays the default thread name.
Syntax
public final String getName()
Example: Program to check whether class contains a certain specific method.
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
Class Object Contains Method whose name is method1
Explanation: Above program uses Java Reflection (Class and Method) to retrieve all methods of a class at runtime. It then checks whether a method with the name "method1" exists and prints a message if found.
