public class Bar {
    public static void main(String[] args) {
        int x = 4;
        String y="5";
        boolean b1 = true;
        boolean b2 = false;
        if ((x == 4) & !b2){
            System.out.print("1");
        System.out.print("2");
        if ((b2 = true) && b1)
           System.out.print(y+3);
    }
}
上述程序执行结果是