Unsolved Programs 1) Write a program to calculate and display the value of the given expression: a 2 +b 2 / a-b , when a=20 , b=15. Sol:- public class u1 { public static void main() { int a=20, b=15, s=0; s=(a*a+b*b)/(a-b); System.out.println("The Output of given expression is "+s); } } 2) Write a program to calculate the gross salary of an employee when Basic Salary = Rs. 8600 DA=20% of Basic Salary HRA= 10% of Basic Salary CTA= 12% of the Basic Salary Gross Salary= (Salary+DA+HRA+CTA) Display the gross salary. Sol:- public class u2 { public static void main() { int b=8600, gross,da,hra,cta; da=8600*20/100; hra=8600*10/100; cta=8600*12/100; ...