Else, else if

Java Menengah

Jim White

Java Developer

Beberapa if

if (score >= 90) {
  System.out.println("Excellent!");  
}

if (score >= 70) {
  System.out.println("Good effort.");  
}

if (score < 70) {
  System.out.println("Keep trying!");  
}

Jika score >= 70, baik Excellent! maupun Good effort. dicetak

➡ Menggunakan banyak if bisa menjadi berantakan

if - else if - else

int score = 80;

if (score >= 90) { 
  System.out.println("Excellent!");  
} else if (score >= 70) { 
  // Hanya kode ini yang dijalankan
  System.out.println("Good effort.");  
} else {
  System.out.println("Keep trying!");  
}

Good effort.

int score = 60;

if (score >= 90) {
  System.out.println("Excellent!");  
} else if (score >= 70) { 
  System.out.println("Good effort.");  
} else { // Hanya kode ini yang dijalankan
  System.out.println("Keep trying!");  
}

Keep trying!

Hanya satu blok yang dijalankan

int score = 95;

if (score >= 90) { // Hanya kode ini yang dijalankan
  System.out.println("Excellent!");  
} else if (score >= 70) { 
  System.out.println("Good effort.");  
} else {
  System.out.println("Keep trying!");  
}

Excellent!

Sebanyak yang diperlukan — perhatikan urutannya

// Sebanyak yang kita perlukan
if (score >= 95) { 
  System.out.println("Excellent job, well done!");  
} else if (score >= 90) { 
  System.out.println("Excellent!");  
}  else if (score >= 80) { 
  System.out.println("Great job.");  
}  else if (score >= 70) { 
  System.out.println("Good effort.");  
} else {
  System.out.println("Keep trying!");  
}

// Hati-hati dengan urutan
int score = 95;

if (score > 70) { // Kode ini berjalan
  System.out.println("Good effort.");  
} else if (score >= 90) { 
  // Ini juga valid
  System.out.println("Excellent!");  
} else {
  System.out.println("Keep trying!");  
}

Good effort.

Ringkasan

int age = 33;

if (age < 20) {
    System.out.println("You are a teenager");
} else if (age < 30) {
    System.out.println("You are in your twenties");
} else if (age < 40) { // Hanya blok ini yang dijalankan
    System.out.println("You are in your thirties");
} else {
    System.out.println("You are older than 39");
}

You are in your thirties

Ayo berlatih!

Java Menengah