custom Linked list java

linkedList.java

import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.lang.*;
import java.awt.List;
import java.io.*;
import java.time.*;
import java.math.*;
import java.rmi.Remote;
import java.sql.Array;

public class MyClass {
	public static void main(String[] args)throws java.lang.Exception{
		nodeList nd=new nodeList();
		nd.insert(12);
		nd.insert(34);
		nd.insert(67);
		nd.insert(45);
		nd.insert(6);
		nd.delete(12);
		nd.printData();
	}
}
class node{
	public node next;
	public int data;
	public node(int data){
		this.data=data;
	}
	
}
class nodeList{
	public node head;
	public nodeList(){
		this.head=null;
	}
	public void insert(int data){
		node n=new node(data);
		n.next=head;
		head=n;
	}
	public void delete(int d){
		node t=head;
		int found=0;
    // to check if first number is d
		if(t.data==d){
			found=1;
			head=head.next;
		}
    // to check other than first number
		else{
			node t1=head;
			while(t!=null){
				if(t.data==d){
					found=1;
					break;
				}
				t1=t;
				t=t.next;
			}
			if(found==1){
				t1.next=t.next;
			}
		}
		if(found==0){
			System.out.println("number not found in linked list");
		}
	}
	public void printData(){
		while(head!=null){
			System.out.println(head.data);
			head=head.next;
		}
	}
}