A: show one
B: show two
C: show three
D: show four
举一反三
- 下列程序的运行结果? public class Test { public static void main(String a[]) { int x=3,y=4,z=5; if (x>3) { if (y<2) System.out.println("show one"); else System.out.println("show two"); } else { if (z>4) System.out.println("show three"); else System.out.println("show four"); } } }
- 定义类Block和类Demo，运行Demo的输出结果是。 class Block{ {//代码1 System.out.print("1"); } static{//代码2 System.out.print("2"); } {//代码3 System.out.print("3"); } public Block() {//代码4 System.out.print("4"); } static void show() {//代码5 System.out.print("5"); } static {//代码6 System.out.print("6"); } } //定义测试类Demo public class Demo { public static void main(String[] args) { new Block().show(); new Block() } }
- public class Example { public static void main(String[] args) { new Father () { public void show() { System.out.println("helloworld"); } }.show(); } } class Father { public void show() { System.out.println("hellofather"); } }
- 有如下类的定义。class A{ public void show() { show2(); } public void show2() { System.out.print("我"); }}class B extends A{ public void show2(){ System.out.print("爱"); }}class C extends B{ public void show() { super.show(); } public void show2() { System.out.print("你"); }}public class Test4 { public static void main(String[] args) { A a=new B(); a.show(); B b=new C(); b.show(); }} A: 我爱你 B: 爱你 C: 我爱 D: 我你
- 下面程序的运行结果是？public static void main(String[] args) { int x = 8; int y = 4; if(x++>8 && ++y<4){ System.out.print(x); }else{ System.out.print(y); } System.out.printf("%d%d",x,y);} A: 995 B: 985 C: 494 D: 495
内容
- 0
阅读下列的程序 public class Example { public static void main(String[] args) { new Father () { public void show() { System.out.println("helloworld"); } }.show(); } } class Father { public void show() { System.out.println("hellofather"); } } A. B. C. D.
- 1
下列程序的运行结果是（）。 public class Test public static void main ( String [ ] args ) int count = 0 for( int i = 1 i < 5 i = 2) for( int j = 1 j< = 10 j = 3) count System .out .print (count ) _
- 2
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"); } }
- 3
下列的程序的运行结果是( )public class Example { public static void main(String[] args) { new Father () { public void show() { System.out.println("helloworld"); } }.show(); }}class Father { public void show() { System.out.println("hellofather"); }} A: hellofather B: helloworld C: 编译报错 D: 编译通过,运行报错
- 4
请阅读下面的程序,写出最终的结果: interface Inter { public void show(); } abstract class AbstractInter implements Inter { public void show() { System.out.println("AbstractInter show()"); } } class InterImpl extends AbstractInter { public void show() { System.out.println("InterImpl show()"); } } public class InterImplTest { public static void main(String[] args) { InterImpl i = new InterImpl(); i. show(); } }