Please answer in Java

Problem 1: Infix to Prefix Conversion Write a program that converts an infix (fully parenthesized) expression to a prefix expression. Like you know, the terms "in" and "pre" are according with the operator's position. The program will have to handle only the binary operators +,-, *, /, ^. parenthesis, letters and numbers. An example would be an expression like: (A*B)+(2*(CA3))/(2*A)) The program must convert this expression (infix) to the prefix expression:/+*AB*2AC3*2A All expressions of the test cases are expressions with valid syntax. Input Read input from a file "in1.txt". The first line of input is an integer N (N 1000), that indicates the total number of test cases. Each case is a valid expression in the infix format. Output For each test case, print the expression converted to prefix expression. Input Sample Output Sample (A*2) *A2 /-+*A2cd2 (( (2*4)/(a^b))/(2*c)? //"24^ab*2c Problem 1: Infix to Prefix Conversion Write a program that converts an infix (fully parenthesized) expression to a prefix expression. Like you know, the terms "in" and "pre" are according with the operator's position. The program will have to handle only the binary operators +,-, *, /, ^. parenthesis, letters and numbers. An example would be an expression like: (A*B)+(2*(CA3))/(2*A)) The program must convert this expression (infix) to the prefix expression:/+*AB*2AC3*2A All expressions of the test cases are expressions with valid syntax. Input Read input from a file "in1.txt". The first line of input is an integer N (N 1000), that indicates the total number of test cases. Each case is a valid expression in the infix format. Output For each test case, print the expression converted to prefix expression. Input Sample Output Sample (A*2) *A2 /-+*A2cd2 (( (2*4)/(a^b))/(2*c)? //"24^ab*2c