In Java, initialize local variables in conditional block

The Java compiler does not allow uninitialized local variables to be discarded. When a local variable is initialized inside a conditional block, the following three situations may happen:

• If a value is provided in the conditional block and the given condition is true, the code compiles successfully.

• If a variable (instead of a value) is provided in a conditional block and the condition is true, the code will give a compilation error.

• If the condition that needs to be checked is false, the code will have a compilation error.

If local variables are initialized to default values ​​outside the code's conditional block, no errors will occur and the code will compile successfully.

Example

Demonstration

public class Demo{
   public static void main(String args[]){
      int i = 35;
      int j = 0;
      if (i > 32){
         j = i + 11;
      }
      System.out.println("The value is: " + j);
   }
}

Output

The value is: 46

A class named Demo contains the main function. Here, two variables are defined, if one variable is greater than a specific number, the other value is added to it, and the ‘if’ block is closed. Then, print the results on the console.

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