SalaryInformationSystem/SalaryInformationSystem.java at main · kalmi306/SalaryInformationSystem · GitHub

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import java.util.*;
class SalaryInformationSystem{
	public static void main(String args[]){
        Scanner input=new Scanner(System.in);

        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("|                    SALARY INFORMATION SYATEM                          |");
        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("");

        System.out.println("[1] Calculate Income Tax");
        System.out.println("[2] Calculate Annual Bonus");
        System.out.println("[3] Calculate Loan Amount");
        System.out.println("");

        System.out.print("Enter an option to continue > " );
        int option=input.nextInt();

        switch(option){
			case 1:
			 CalculateIncomeTax(input);
			 break;
			case 2:
			 CalculateAnnualBonus(input);
			 break;
			case 3:
			 CalculateLoanAmount(input);
			 break;
			default:
			 System.out.println("Invalid Option");
	     }
	   input.close();
}


//1
    public static void CalculateIncomeTax(Scanner input){
        System.out.println("");
        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("|                      Calculate Income Tax                             |");
        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("");

        System.out.print("Input Employee name - " );
        String name=input.next();
        System.out.print("Input Employee salary - " );
        int salary=input.nextInt();

        int tax=0;

        if(salary>10000){
        if(salary>308333){
			int x=salary-308333;
			tax+=x*0.36;
		}if(salary>266667){
			int x=Math.min(salary-266667,41667);
			tax+=x*0.30;
		}if(salary>225000){
			int x=Math.min(salary-225000,41667);
			tax+=x*0.24;
		}if(salary>183333){
			int x=Math.min(salary-183333,41667);
			tax+=x*0.18;
		}if(salary>141667){
			int x=Math.min(salary-141667,41667);
			tax+=x*0.12;
  		}if(salary>100000){
			int x=Math.min(salary-100000,41667);
			tax+=x*0.06;
		}
	}
         System.out.println("You have to pay Income Tax per month: " +Math.round(tax));

 }


//2
    public static void CalculateAnnualBonus(Scanner input){
        System.out.println("");
        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("|                      Calculate Annual Bonus                          |");
        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("");

        System.out.print("Input Employee name - " );
        String name=input.next();

        System.out.print("Input Employee salary - " );
        int salary=input.nextInt();

        double bonus=0;
        if(salary>400000){
		  bonus=salary*0.35;
	    }else if(salary>300000){
		  bonus=salary*0.20;
	    }else if(salary>200000){
		  bonus=salary*0.15;
	    }else if(salary>100000){
		  bonus=salary*0.10;
	    }else {
		  bonus=5000;
		}

		System.out.println("Annual Bonus : " +Math.round(bonus));
     }
//3
    public static void CalculateLoanAmount(Scanner input){
        System.out.println("");
        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("|                      Calculate Loan Amount                           |");
        System.out.println(" -----------------------------------------------------------------------");
        System.out.println("");

        System.out.print("Input Employee name - " );
        String name=input.next();

        System.out.print("Input Employee salary - " );
        int salary=input.nextInt();

        System.out.print("Enter number of year : " );
        int year=input.nextInt();

        if(year>5 || year<=0){
		    System.out.println("Invalid number of years(max 5)" );
	        return;
	     }

		if(salary<=50000){
            System.out.println("You can not get a loan because your salay lessthan Rs.50 000..." );
            return;
         }

        double r=0.15;
        double monthlyInterestRate=r/12;
        int n=year*12;
        double maxEMI=salary*0.60;

        double x=maxEMI*(Math.pow(1+monthlyInterestRate,n)-1);
        double y=monthlyInterestRate*Math.pow(1+monthlyInterestRate,n);
        double loanamount=x/y;

        loanamount=Math.round(loanamount/1000)*1000;
		System.out.println("You can get Loan Amount : " +Math.round(loanamount));


   }
}