Develop a Java or C++ code using Gauss-Jordan elimination Algorithm to read in the input, systematically perform the chosen technique, and then print the output. ( please screen shot the result and use comments).

4X1 + X2 + X3 + X4= 6 3X1 + 7X2-X3+X4=1 7x1 + 3x2-5x3 + 8x4 =-3 X1 +X2 +X3 + 2X4 = 3