Membuat Program SegiTiga.java
class SegiTiga {
public SegiTiga (double panjang) {
System.out.println ("\nvariabel = segitiganya sama sisi");
System.out.println ("Panjang = " +panjang);
keliling (panjang);
}
public SegiTiga (double panjang, double sisiMiring) {
System.out.println("panjang = " +panjang+ " sisi miring = " +sisiMiring);
keliling (panjang, sisiMiring);
}
public void keliling (double panjang) {
tampilkanHasil (panjang*3);
}
public void keliling (double p, double sM) {
tampilkanHasil (2*sM+p);
}
protected void tampilkanHasil (double h) {
System.out.println ("hasil = " +h);
}
}
Penjelasan : double panjang disini di namakan method. Kalau double p dinamakan parameter,
Outnya : ini bukan clas utama karena tidak ada fungsi utama
Membuat Program MainSegiTiga.java
class MainSegiTiga {
public static void main (String [] args) {
new SegiTiga (7);
new SegiTiga (4,7);
}
}
Penjelasan : new segitiga(7) disini dinamakan konstruktor.
Outputnya : Class utama karena memiliki fungsi utama.
Membuat Program OverRiding.java
class OverRiding {
public void MethodAsli () {
System.out.println("Method milik class OverRiding dijalankan");
}
public static void main (String [] args) {
OverRiding O = new OverRiding ();
O.MethodAsli ();
}
}
Membuat Program SubOverRiding.java
class SubOverRiding extends OverRiding {
public void MethodAsli () {
System.out.println("Method yang sudah OverRiding dijalankan");
}
public void MethodAsliSuper () {
System.out.println("Method pemanggil MethodAsli dijalankan");
super.MethodAsli();
}
public static void main(String [] args) {
SubOverRiding SO = new SubOverRiding();
SO.MethodAsli();
SO.MethodAsliSuper();
}
}
Membuat Program TanpaException.java
class TanpaException {
public static void main (String [] args) {
int Nilai = Integer.parseInt (args[0]);
System.out.println ("nilai yang dimasukkan : " +Nilai);
}
}
Membuat Program CobaException.java
class CobaException {
public static void main (String [] args) {
int nilai = 0;
try {
int Nilai = Integer.parseInt (args[0]);
System.out.println("Nilai yang dimasukkan : " +Nilai);
}
catch(Exception e) {
System.out.println("Pasti yang diinput bukan integer");
}
finally {
System.out.println("blok finally tetap dilakukan");
}
}
}
Membuat Program PembagianNol.java
class PembagianNol {
public static void main (String [] args) {
System.out.println("Sebelum pembagian");
try {
System.out.println(5/0);
}
catch (Throwable T) {
System.out.println("Terjadi pembagian nol");
}
System.out.println("Sesudah pembagian");
}
}
Membuat Program TesInputData.java
import java.io.*;
class TesInputData {
public static void main (String [] args) {
BufferedReader BR = new BufferedReader (new InputStreamReader (System.in));
String Input = " ";
try {
System.out.println("Masukkan data : ");
Input = "Salah";
}
finally {
System.out.println("Data yang anda masukkan adalah " +Input);
}
}
}
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