(a) Assume that in a certain country, tax is payable at the following rates: 15%

Question

(a) Assume that in a certain country, tax is payable at the following rates: 15% on your first $50000 income 25% on any amount over $50000 Write a method that takes in an annual income value and returns the amount of tax payable. The method should have the following signature: public float tax(int income) (5 marks) (b) Given below is a Java method: Suppose that we have an int array defined as follows: What will be printed if mystery(a, 6) is called? (3 marks) (e) Rewrite the method in (b) using a while loop.

Explanation / Answer

a)
  
   public float tax(int income)
   {
       float tax_payable=0;
      
       if(income<50000)
           tax_payable=(income*15)/100;
       else
           tax_payable=(income*25)/100;
      
       return tax_payable;
   }
   b)
  
   output will be:
      
       number[0]=10
       number[1]=15
       number[4]=2
       number[5]=7
      
   c)
  
   public void mystery(int [] number,int n)
   {
       int i=0;
      
       while(i<=n)
       {
           if(number[i]<0 || number[i]>15)
           i++;
           else
               System.out.println("number["+i+"]="+number[i]);
           i++;
       }
   }

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