评论详情-牛客网

答案：1.if(System.out.append("A")==null){
        System.out.print("A");
    }else{
        System.out.print("B");

}

2.if(new Object(){{System.out.print("A");}} == null){
        System.out.print("A");
    }else{
        System.out.print("B");
    }

3.if(true)System.out.print("A"); if(false){
        System.out.print("A");
    }else{
        System.out.print("B");
    }