String s1=”abc”+”def”;

String s2=new String（s1）；

if（s1= =s2）

    System.out.println(“= = succeeded”);

if (s1.equals(s2))

    System.out.println(“.equals() succeeded");

阅读下列程序：

class Test {

privat

stati

nam

System.out.print (nam

}

publi

System.out.print("Hello");

Test test = new Test();

}

}

class Demo{

       public static void main(String[] args){

       int x = div(1,2);

       try{

       }catch(Exception e){

             System.out.println(　　);

       }

       System.out.println(x);

   }

   public static int div(int a,int b){

         return a / b ;

   }

}

ReturnType method(byte x, double y){

  return (short)x/y*2;

}