JAVA中intern()方法的使用经验小结

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 print?
public static void main(String[] args) throws Exception {  
    String a =  "b" ;   
    String b =  "b" ;   
      
    System.out.print( a == b);   
      
    String c = "d" ;  
    String d = new String( "d" ).intern() ;   
    System.out.println( c == d);  
}

[java] view plain copy
 print?
<span style="white-space:pre">      </span>String s1 = "ab123" ;  
        String s2 = new String( "ab123" ) ;  
        System.out.println( s1 == s2 );   
        String s3 = s2.intern() ;   
        System.out.println( s1 == s3 ) ;