java问题，非法表达式的开始

2025-03-01 22:26:24

推荐回答（3个）

回答1：

class Bowl{
Bowl(int marker){
System.out.println("Bowl("+marker+")");
}
void f(int marker){
System.out.println("f("+marker+")");
}
}
class Table{
//下面这行的Bowl你打错了打成了Bow1,static应该去掉

Bowl b1=new Bowl(1);
Table(){
System.out.println("Table()");
b2.f(1);
}
void f2(int marker){
System.out.println("f2("+marker+")");
}
Bowl b2=new Bowl(2);
}
class Cupboard{

Bowl b3=new Bowl(3);
static Bowl b4=new Bowl(4);
Cupboard(){
System.out.println("Cupboard()");
b4.f(2);
}
void f3(int marker){
System.out.println("f3("+marker+")");
}
static Bowl b5=new Bowl(5);
}
class TIJ04271{
public static void main(String[] args){
System.out.println("Creating new Cupboard() in main");
new Cupboard();
System.out.println("Creating new Cupboard() in main");
new Cupboard();
//以下两行的static去掉
//static Table t2=new Table();
//static Cupboard t3=new Cupboard();

Table t2=new Table();
Cupboard t3=new Cupboard();
//注意以下两行的位置
t2.f2(1);
t3.f3(1);
}
}
运行结果：
Creating new Cupboard() in main
Bowl(4)
Bowl(5)
Bowl(3)
Cupboard()
f(2)
Creating new Cupboard() in main
Bowl(3)
Cupboard()
f(2)
Bowl(2)
Bowl(1)
Table()
f(1)
Bowl(3)
Cupboard()
f(2)
f2(1)
f3(1)
Press any key to continue...
结论：
1，不要轻信书本
2，要仔细查找错误
3，写程序时更要仔细

回答2：

1 main这里不能声明静态变量,把static去掉.并且放到t2.f2(1); 前面去.
2 static Bowl b1=new Bow1(1); 这句你打错了,后面打成了Bow1(数字1),应该是Bowl
改完就能通过并运行了.另外如果你的main()方法是这样的,你的输出结果不应该是你写的那样.我也是新手,大家一起努力!

回答3：

class Bowl{
Bowl(int marker){
System.out.println("Bowl("+marker+")");
}
void f(int marker){
System.out.println("f("+marker+")");
}
}
class Table{
static Bowl b1=new Bowl(1); /////////// 1 -> l
Table(){
System.out.println("Table()");
b2.f(1);
}
void f2(int marker){
System.out.println("f2("+marker+")");
}
static Bowl b2=new Bowl(2);
}
class Cupboard{
Bowl b3=new Bowl(3);
static Bowl b4=new Bowl(4);
Cupboard(){
System.out.println("Cupboard()");
b4.f(2);
}
void f3(int marker){
System.out.println("f3("+marker+")");
}
static Bowl b5=new Bowl(5);
}
public class TIJ04271{
public static void main(String[] args){
System.out.println("Creating new Cupboard() in main");
new Cupboard();
System.out.println("Creating new Cupboard() in main");
new Cupboard();
t2.f2(1);
t3.f3(1);
//////////////// move to below
}
static Table t2=new Table();
static Cupboard t3=new Cupboard();
}

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