if, else if and else in Java

package com.caffeinealgorithm.programminginjava;

public class IfElseIfAndElse {
  /*
    (if - if) condition is true {
      the code inside the if is executed
    }
    (else if - otherwise if) condition is true (else if only occurs if if condition is false) {
      code inside else if is executed
    }
    (else - if not) no condition (only occurs if condition of if and else if are false) {
      the code inside the else is executed
    }
  */

  public void Run() {
    int x = 30;

    if (x == 10)
      System.out.println("The value of x is equal to 10.");
    else if (x == 20)
      System.out.println("The value of x is equal to 20.");
    else
      System.out.println("The value of x is different from 10 and 20.");
  }
}

// The value of x is different from 10 and 20.