How do I execute this two codes with if statements java

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Java

I have been trying to work on this code to calculate polynomials for a while, but it seems I am stuck due to my low knowledge of java

if (m>1){
			
			if (x1>=0 || x1<0) {
				System.out.println("Please enter the values of f(x1): \n");
				for (int i = Koef.length-2; i >=0; i--) { // gives the length of my row (m)
					for (int j =Koef[0].length-1; j>=0;j--) { //gives the length of my column (n).
						Koef[0][j] = readInteger("Enter the values of your coeffecients: "
												+"f(x1), Coeffecient" +(j)+": "); // readInteger takes an input from the user
					}
						System.out.println();
				}
			}
//MY PROBLEM is here		
//I was trying to execute this code below too after the code above finishes, but somehow it never reaches to it

			if(x2>=0 || x2<0) {
				System.out.println("Now enter the value of f(x2):  \n");
				for (int i = Koef.length-2; i >=0; i--) { 
					for (int j =Koef[0].length-1; j>=0;j--) { 
									
						Koef[1][j] = readInteger("Enter the value of coefficients: "
												+"f(x2), Coefficient" +(j)+": ");
					}
				}
			}
//====================================================================
//THis what happens in the testClass:

int n = 1+readInteger("Which polynomial degree do you want to enter for f(x1)?");
				int x1 = readInteger("please enter the value of x1:");
				polynom pol1 = new polynom (m,n,x1,0); //m-2 = array 0 & n +1 = polynomial degree of array 0
// m is first array, n is second array, x1 is the value of 1st polynomial x2 value of 2nd			
	
int n = 1+readInteger("Which polynomial degree do you want to enter for f(x1)?");
				int x2 = readInteger("Please enter the value of x2:");
				polynom pol2 = new polynom (m,n,0,x2);

I would be very thankful for any help :)

What I have tried:

I tried not to use the if statements, but I get as a print of f(x1) and f(x2) with the first given power and then get both results again with the 2nd given power.

What I want is: to get f(x1) with the first power (n) and f(x2) with the second power
Each one time only.