totalInterestEarned $=$ year$4$InvestmentValue $-$ initialInvestment;

$//$ Output using println

printStepHeader$(4)$;

System.out.println$("$initialInvestment: $"+$ initialInvestment$)$;

System.out.println$("$year$1$InvestmentValue: $"+$ year$1$InvestmentValue$)$;

System.out.println$("$year$2$InvestmentValue: $"+$ year$2$InvestmentValue$)$;

System.out.println$("$year$3$InvestmentValue: $"+$ year$3$InvestmentValue$)$;

System.out.println$("$year$4$InvestmentValue: $"+$ year$4$InvestmentValue$)$;

System.out.println$("$totalInterestEarned: $"+$ totalInterestEarned$)$;

$//$ Output using printf

System.out.printf$("$initialInvestment: $\%\mathrm{.}2$f$\%$n$",$ initialInvestment$)$;

System.out.printf$("$year$1$InvestmentValue: $\%\mathrm{.}2$f$\%$n$",$ year$1$InvestmentValue$)$;

System.out.printf$("$year$2$InvestmentValue: $\%\mathrm{.}2$f$\%$n$",$ year$2$InvestmentValue$)$;

System.out.printf$("$year$3$InvestmentValue: $\%\mathrm{.}2$f$\%$n$",$ year$3$InvestmentValue$)$;

System.out.printf$("$year$4$InvestmentValue: $\%\mathrm{.}2$f$\%$n$",$ year$4$InvestmentValue$)$;

System.out.printf$("$totalInterestEarned: $\%\mathrm{.}2$f$\%$n$",$ totalInterestEarned$)$;