What is wrong with the following if statement? : Questions « Statements « SCJP

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public class MainClass{
    public static void main(String[] argv){
    
        int x = 0;
        int y=2;
        int z = 3;
        if(x++) {
           y = x * z;
           x /= 2;
        }else {
           y = y * y;
           ++z;
        }
    
    }
}