A few small java programs

Need help with 3 small seperate java programs ***See attachment for full details, thanks!*** 1.) creating a two-dimensional ragged-array of ints. You will write a nested for-loop that initializes all of the cells in row-first order as specified below. You will then traverse the array, again in row-first order, and sum the value of each entry in the array. 2.) You will be provided with a compiled (.class) file for a Java class called SomeClass. This class has a single constructor (documented below) and an overridden implementation of the equals() method. Your task is to perform unit testing on the equals() method and discover several bugs with its implementation. Knowledge of what the equals() method should do is vital to developing an efficient and exhaustive test suite. 3.) using the Logger and Throwable classes ***See attachment for full details, thanks!*** ## Deliverables all .java and .class files ## Platform Windows 2000 or Windows XP