Java 程序将正整数转换为负数，将负数转换为正数

要将正整数转换为负数并反之亦然，请使用按位取反运算符。

让我们首先初始化一个正整数 −

int positiveVal = 200;

现在，让我们将其转换为负数 −

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

现在，假设我们有以下负整数 −

int negativeVal = -300;

以下内容将负数转换为正整数 −

positiveVal = ~(negativeVal - 1);

示例

 在线演示

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);
   }
}

输出

Result: Positive value converted to Negative = -100
Actual Positive Value = 100
Actual Negative Value = -200
Result: Negative value converted to Positive = 200

Samual Sam

更新于： 30-7-2019

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