If - else statement (Part 2)

 Java if-else Statement

The Java if-else statement  tests the condition , it executes the if block if condition is true otherwise else block is executed.

Syntax:-

 if (condition) {    
  // block of code to be executed if the condition is true    
  }   
 else  
 {  
  // block of code to be executed if the condition is false  
 } 

Flowchart:-

Eg:-

 public class MyClass {   
   public static void main(String args[]) {   
 int time = 20;  
 if (time < 18) {  
  System.out.println("Good day.");  
    }  
  else {  
  System.out.println("Good evening.");  
    }  
   }  
  } 

Output:-

 Good day.  

Ternary Operator

In place of if-else sometimes ternary operator is used as it replaces multiple lines of code into a single line

Syntax:-

 variable = (condition) ? expressionForTrue : expressionForFalse;  

Eg:-

Above block of code by replacing if-else with ternary operator can be written as:

 int time = 20;  
 String result = (time < 18) ? "Good day." : "Good evening.";  
 System.out.println(result); 

It will generate the same output.

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