（2-5）写出下面程序运行结果。
public class Demo {
public static void main(String args[]) {
System.out.println(123);
System.out.println(0123);
System.out.println(0x123);
}
}
public class Demo {
public static void main(String args[]) {
System.out.println(123);
System.out.println(0123);
System.out.println(0x123);
}
}
举一反三
- 中国大学MOOC: 下列代码中构造方法的返回类型是（）public class Village { Village () { System .out .println(“hiding in Village”) ; } public static void main( String args [ ]) { Village c =new Village ( ) ;}class Village { public static void main( String args [ ]) { Village c =new Village ( ) ; } Village () { System .out .println(“hiding in Village”) ; } }
- （2-6）写出下面程序运行结果。 public class Demo { public static void main(String args[]) { int a=10,b=20; a=a^b; b=b^a; System.out.println(a); System.out.println(b); } }
- （2-6）请写出下面程序运行结果。 public class Demo { public static void main(String[] args) { int b = 011001; System.out.println(b); } }
- 下列ABCD注释标注的哪行代码有错public class Demo { public static void main(String args[]) { System.out.println("Java"); system.out.println("hello"); System.out.println("你好"); } } A: public class Demo B: public static void main(String args[]) C: system.out.println("ok"); D: System.out.println("您好");
- 下列程序运行结果是 public class Demo { public static void main(String[] args) { Object obj=new Father(){ public void show(){ System.out.println("helloworld"); } }; obj.show(); } } class Father{ public void show(){ System.out.println("hello father"); } }