a$)$Draw the corresponding control flow graph for the method. b$)$Calculate the Cyclomatic Complexity of the sum$($int$)$ method. c$)$ list the paths and Design test cases to achieve $100\%$ statement coverage. d$)$ List the basis set of linearly independent paths, along with a test case $($input parameters$)$ and expected outcome for each of the path in the basis set. give me step by step detailed solution for this $4$ questions and code is in the picture attached. A Java method to compute the sun of $1$

:Il is shown in the bollowing rats code below: