Need help on these 2 problems in Java. Please be specific in coding for solutions so I can understand. Thank you!

1. Write a program to check whether a triangle is valid or not, when the three angles of the triangle are entered through the keyboard. A triangle is valid if the sum of all the three angles is equal to 180 degrees.

2. If the length of three sides of a triangle are entered through the keyboard, write a program to check whether the triangle is valid or not. The triangle is valid if the sum of two sides is greater than the largest of the three sides. Also display whether the triangle is equilateral (all sides are equal in length), isosceles (two sides are equal in length), or scalene (all sides are different in length).