有如下的程序：public class Welcome{ public static void main( String args[ ] ){ System.out.println( "How\nare\nyou!\n" ); }}
A: Howareyou!..
B: How are you !
C: Howareyou!.
D: Howareyou!
A: Howareyou!..
B: How are you !
C: Howareyou!.
D: Howareyou!
举一反三
- 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");
- 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”) ; } }
- 下列语句输出结果为( )。public class test{public static void main(String args []){String s1=new String("How");String s2=new String("How");System.out. println(!(s1 ==s2));} A: false B: true C: 1 D: 0
- public class ChangeStrDemo { public static void changeStr(String str){ str="welcome"; } public static void main(String[] args) { String str="home"; changeStr(str); System.out.println(str); } }给出程序的运行结果（ ）
- 给定如下java 代码，在下划线处填入（ ），代表HelloWorld 类具有main方法，可以独立运行。public class Helloworld { _______{ System.out.println( “ hello world” ) ; } } A: public static void main( String args ) B: static void main( String args[ ] ) C: public static void main( String[ ] strs ) D: public static main( String args[ ] )