Write a simple java code to evaluate arithmetic expression using binary operators only. No brackets, braces and paranthesis. Hint: convert expression to postfix and then evaluate using stack.

Zybooks C++ 1.7 LAB: Introduction to data structures labs Step 1: Producing correct output Three commented-out lines of code exist in main(). Uncomment the lines and click the "Run program" button. Verify that the program's output is: 2 + 2 = 4 Unknown function: PrintPlus2 Secret string: "abc" Submit your code for grading. Your submission will pass the "Compare output" test only, achieving 1 of the possible 10 points. Step 2: Inspecting the LabPrinter class Inspect the LabPrinter class implemented in the LabPrinter.h file. Access LabPrinter.h by clicking on the orange arrow next to main.cpp at the top of the coding window. Member functions Print2Plus2() and PrintSecret() print strings using std::cout. Step 3: Implementing CallFunctionNamed() Remove the three uncommented lines from main(). Then implement the CallFunctionNamed() function in main.cpp to handle three cases: If functionName is "Print2Plus2", call printer's Print2Plus2() member function. If functionName is "PrintSecret",…

Question: Your task is to find the number of ways that you can put those brackets in such a way that they will be always balanced after taking the n pair of brackets from the user in Java Language.

4- Write a C program to read an integer number num and find it's factorial. Note: the factorial number is all the number multiplied from 1 to the number itself. n! = n(n - 1)(n – 2) ... (2)(1) Example: 5! = (5)(4)(3)(2)(1) = 120

Please answer 6 and 7 as they are associated altogether. 6. The FixProgram.java below has some errors.a. Fix the errors so that the program successfully compiles and runs. class FixProgram{ public static void main(String[] args) { System.out.println('Hello World!') }}  7. Change the SampleProgram.java program below.a. So that it displays Programming is fun! Instead of Hello World! class SampleProgram{ public static void main(String[] args) { System.out.println("Hello World!"); }}