Syntax error Java Program to convert positive int to negative and negative to positive

Java Program to convert positive int to negative and negative to positive

To convert positive int to negative and vice-versa, use the Bitwise Complement Operator.

Let us first initialize a positive int −

int positiveVal = 200;

Now, let us convert it to negative −

int negativeVal = (~(positiveVal - 1));

Now, let’s say we have the following negative int −

int negativeVal = -300;

The following will convert the negative to positive int −

positiveVal = ~(negativeVal - 1);

Example

 Live Demo

public class Demo {
   public static void main(String[] args) throws java.lang.Exception {
      int positiveVal = 100;
      int negativeVal = (~(positiveVal - 1));
      System.out.println("Result: Positive value converted to Negative = "+negativeVal);
      positiveVal = ~(negativeVal - 1);
      System.out.println("Actual Positive Value = "+positiveVal);
      negativeVal = -200;
      System.out.println("Actual Negative Value = "+negativeVal);
      positiveVal = ~(negativeVal - 1);
      System.out.println("Result: Negative value converted to Positive = "+positiveVal);
   }
}

Output

Result: Positive value converted to Negative = -100
Actual Positive Value = 100
Actual Negative Value = -200
Result: Negative value converted to Positive = 200
Updated on: 2019-07-30T22:30:25+05:30

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