【javaSE】异常

class Test{ 
	public static String output=""; 
	public static void foo(int i){ 
		try{ 
			if(i==1)
				throw new Exception(); 	
			output+="1"; 
		} 
		catch(Exception e){ 
			output+="2"; 
			//return; 
		} 
		finally{ 
			output+="3"; 
		} 
		output+="4"; 
	}
	public static void main(String args[]){ 
		foo(0);
		System.out.println(output);//
		foo(1); 
		System.out.println(output);// 
	}
}

【答案】	134
		134234  

  public  int aaa(){
	int x=1;
			
		try{
			return ++x;
		}catch(Exception e){
				
		}finally{
			++x;		
		}
		//System.out.println("atguigu");
		return x;	
   }
	
public static void main(String[] args) {
	Test t= new Test();
	int y=t.aaa();
	System.out.println(y);
}
打印结果是？
【答案】

2