A: 0
B: 1
C: 2
D: 3
举一反三
- 下面代码的运行结果为:( ) import java.io.*; import java.util.*; public class foo{ public static void main (String[] args){ String s; System.out.println("s=" + s); } }
- 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 Test { public static void main(String[] args) { String s1 = "abc"; String s2 = new String ("abc"); System.out.println(s1 == s2); } } 程序运行结果是
- 写出下面程序的运行结果 【15】 import java.io.*; public class abc public static void main(String args[]) String s1="Hello!"; String s2=new String("World!"); System.out.println(s1.concat(s2));
- 以下程序的运行结果为( )。public class Test { public static void main(String args[ ]) { int i=0, j=2; do { i=++i; j--; } while(j>0); System.out.println(i); }} A: 0 B: 1 C: 2 D: 3
内容
- 0
读代码:public class foo {static String s;public static void main (String[]args) {System.out.println (“s=” + s);}}结果是
- 1
以下代码的调试结果为?以下程序的运行结果为 public class test { public static void main(String args[]) { int i = 1; do { i--; } while (i > 2); System.out.println(i); } }
- 2
以下程序调试结果 public class test { public static void main(String args[]) { int i=1, j=3; while (j>0) { j--; i++; } System.out.println(i); }} A: 4 B: 2 C: 3 D: 0
- 3
import java.io.*;public class abc{public static void main(String args[ ]){ AB s = new AB("Hello!",“world”);System.out.println(s.toString( ));}} class AB {String s1;String s2;AB( String str1 , String str2 ){ s1 = str1; s2 = str2; }public String toString( ){ return s1+s2; }} A: Hello!world B: worldHello!
- 4
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 ) _