Auto-unboxing allows you to mix different types of numeric objects in an expression. : Autobox Unbox « Data Type « Java

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Java » Data Type » Autobox UnboxScreenshots 
Auto-unboxing allows you to mix different types of numeric objects in an expression.
  
class AutoBox4 {
  public static void main(String args[]) {

    Integer iOb = 100;
    Double dOb = 98.6;

    dOb = dOb + iOb;
    System.out.println("dOb after expression: " + dOb);
  }
}

   
  
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