Karak.class

public class karak
{
public static void main (String args [])
{
char ch ='a';
char ch1 = 'B';
char besar = Character.toUpperCase(ch);
char kecil = Character.toLowerCase(ch1);
boolean cek = Character.isUpperCase(ch1);
boolean cek1 = Character.isDigit(ch);

System.out.println("Huruf kapital : " + besar);
System.out.println("Huruf kecil : " + kecil);
System.out.println("Apakah huruf besar : " + cek);
System.out.println("Apakah berupa angka : " + cek1);
System.out.print("\n");

System.out.println("Dia berkata \"Assalamu'alaikum\" ke saya.");
System.out.println ("Selamat siang \rmakalah");
System.out.println ("Selamat siang \f makalah");
System.out.println ("Selamat siang, apakah 'makalah' presentasi sudah jadi/beres ?");
}
}