【Java程序设计】模拟试题
写出下面程序的运行结果import java.io.*;public class abc{ public static void main(String args[ ]){ AB s = new AB("Hello!","I love JAVA.");System.out.println(s.toString( ));}}class AB {String s1;String s2;publicAB(String str1, String str2){ s1 = str1; s2 = str2; }public String toString( ){ return s1+s2;}}
考题内容：
写出下面程序的运行结果 import java.io.*;public class abc{   public static void main(String args [ ]){    AB s = new AB("Hello!","I love JAVA.");         System.out.println(s.toString( ));    }}class AB {  String s1;  String s2;  public AB(String str1, String str2)  { s1 = str1;  s2 = str2; }  public String toString( )  { return s1+s2;}}