[多项选择题] 程序如下:∥Java_1. java∥********** Found **********Import ( 1 ) ;public class Java_1 public s
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[多项选择题]
程序如下:
∥Java_1. java
∥********** Found **********
Import ( 1 ) ;
public class Java_1
public static void main(String args[ ])
String s1="hashcode",
s2="HashCode";
String output="""+s1+""的Hash码是"+s1. hashCode( )+"""+s2+""的Hash码
是"+s2. hashCode( );
JOptionPane. showMessageDialog ( null, output,"显示字符串类的hash码",
∥********** Found **********
JOptionPane. ( 2 ) );
System. exit(0);
参考答案: