package com.hui_integer;
public class DEmo {
public static void main(String[] args) {
Integer i ;
//System.out.println(i);
//Integer n = new Integer();//错误
String s = new String();
System.out.println(s);
String f ;
//System.out.println(f);
StringBuffer sb = new StringBuffer();
System.out.println(sb);
}
} |
|
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