Cara Menggunakan Method Sccaner,BufferReader dan Console di java

code Sccaner ================================================================
package pertemuan4;

import java.sql.SQLOutput;
import java.util.Scanner;

public class DataKaryawan {
public static void main(String[] args) {
String nama,alamat;
int umur,gaji;

Scanner InputUser = new Scanner(System.in);

System.out.println("Data Karyawan PT Mascot International");
System.out.println("=====================================");

System.out.print("Masakan nama : ");
nama = InputUser.nextLine();
System.out.print("Masakan alamat : ");
alamat = InputUser.nextLine();
System.out.print("Masakan umur : ");
umur = InputUser.nextInt();
System.out.print("Masakan gaji : ");
gaji = InputUser.nextInt();

System.out.println("Data Karyawan PT Mascot International");
System.out.println("=====================================");
System.out.println("Nama Karyawan : " + nama);
System.out.println("alamat : " + alamat);
System.out.println("umur : " + umur);
System.out.println("gaji : " + gaji);
}
}


code BufferReader ==============================================================
package pertemuan4;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.BufferedReader;
public class BufferRider {
public static void main(String[] args) throws IOException {
String nama;

InputStreamReader isr =new InputStreamReader(System.in);
BufferedReader br= new BufferedReader(isr);

System.out.print("Masukan nama : ");
nama = br.readLine();

System.out.println("Nama Kamu adalah : " + nama);
}
}


code Console ==============================================================

package pertemuan4;
import java.io.Console;

public class contohConsole {
public static void main(String[] args) {
String nama;
int umur;
Console con= System.console();
System.out.print("Masukan Nama : ");
nama = con.readLine();
System.out.print("Masukan Umur : ");
umur = Integer.parseInt(con.readLine());

System.out.println("nama kamu : " + nama);
System.out.println("umur kamu : " + umur);

}
}