what is Ljava lang String

Question

I have a string array selectCancel with setter and getter methods  which is a checkbox in my form  I am trying to get the checked values and I am getting the above result when I print   I tried the Arrays toString   method but it still prints the same   I then did the following   String checked   Arrays toString Employee getSelectCancel       I also tried with the Arrays asList   and Arrays copyOf    So  how do I read this string

User · Answer

stands for single dimension array  Ljava lang String stands for the string class  L followed by class interface name   Few Examples   Class forName  quot  D quot   - gt  Array of primitive double Class forName  quot   Ljava lang String quot   - gt  Two dimensional array of strings   List of notations   Element Type   Notation  boolean   Z  byte   B  char   C  class or interface   Lclassname  double   D  float   F  int   I  long   J  short   S

User · Answer

I also met this problem when I ve made ListView for android app   Map lt String  Object gt  m   for int i 0  i  lt  dates length  i         m   new HashMap lt String  Object gt         m put ATTR DATES  dates i        m put ATTR SQUATS  squats i        m put ATTR BP  benchpress i        m put ATTR ROW  row i        data add m       The problem was that I ve forgotten to use the  i  index inside the loop

User · Answer

Ljava lang String   is returned where you used string arrays as strings  Employee getSelectCancel   does not seem to return a String

User · Answer

The method works if you provide an array  The output of  String   helloWorld     Hello    World    System out println helloWorld   System out println Arrays toString helloWorld      is   Ljava lang String  45a877  Hello  World     the number after   is almost always different   Please tell us the return type of Employee getSelectCancel

User · Answer

According to the Java Virtual Machine Specification  Java SE 8   JVM   4 3 2  Field Descriptors    FieldType term   Type        Interpretation --------------   ---------   -------------- L ClassName      reference   an instance of class ClassName                  reference   one array dimension                                     the expression  Ljava lang String  45a877 means this is an array       of class java lang String   Ljava lang String     And  45a877 is the address where the String object is stored in memory

[java] what is Ljava.lang.String;@

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