ShowIf.java

 public class ShowIf {
    public void printWay(boolean A, boolean B) {
        if(A) {
            System.out.println("A is true, but B is not");
        }
        if(B) {
            System.out.println("B is true, but A is not");
        }else{
            System.out.println("Both A and B aren't true");
        }
        //just for some good lucking space between outputs
        System.out.println();
    }

    public static void main(String[] args) {
        ShowIf sut = ShowIf();
        sut.printWay(true, true);
        sut.printWay(true, false);
        sut.printWay(false, true);
        sut.printWay(false, false);
    }
}