Clojure Java Interoperability

-1

I am new to Clojure. I am trying to understand clojure java interop. I have a java hashmap which I need to use in my Clojure program. I am trying to iterate on the hash map but it is giving me an error.

Main.java:



  package com.example;

  import java.util.HashMap;

  import java.util.Map;

  import clojure.java.api.Clojure;

  import clojure.lang.IFn;

  class Main {

       public static void main( String args ) {

          IFn require = Clojure.var("clojure.core", "require");

          require.invoke(Clojure.read("com.example.core"));

          IFn Print  = Clojure.var("com.example.core", "Print");

          Map<String, String> map = new HashMap<>();

          map.put("message", "hello world");

          Print.invoke(map);

   }

}



core.clj:



   (ns com.example.core

        (:gen-class))

   (defn Print [m]

       (doseq [[k v] map] (prn k v)))

   (defn -Print [m]

        (Print m))

When I am trying to run the program as a java application, it is saying-
Exception in thread "main" java.lang.IllegalArgumentException: Don't know
how to create ISeq from: clojure.core$map.

When I am trying to run it as a clojure application it is saying-
Exception in thread "main" clojure.lang.ArityException: Wrong number of
args (0) passed to: core/-main.

I have tried to search for resources on the internet and everywhere it is being said that we need to use java hashmap in the same way as we use clojure map. But nothing is working for me and I don't know what am I doing wrong.

Any help would be appreciated.

asked Dec 29 '18 at 6:15

ditri

I finally resolved the issue. There was a mistake in my Clojure code.

– ditri
Dec 29 '18 at 6:36

add a comment |

-1

Main.java:



  package com.example;

  import java.util.HashMap;

  import java.util.Map;

  import clojure.java.api.Clojure;

  import clojure.lang.IFn;

  class Main {

       public static void main( String args ) {

          IFn require = Clojure.var("clojure.core", "require");

          require.invoke(Clojure.read("com.example.core"));

          IFn Print  = Clojure.var("com.example.core", "Print");

          Map<String, String> map = new HashMap<>();

          map.put("message", "hello world");

          Print.invoke(map);

   }

}



core.clj:



   (ns com.example.core

        (:gen-class))

   (defn Print [m]

       (doseq [[k v] map] (prn k v)))

   (defn -Print [m]

        (Print m))

When I am trying to run the program as a java application, it is saying-
Exception in thread "main" java.lang.IllegalArgumentException: Don't know
how to create ISeq from: clojure.core$map.

When I am trying to run it as a clojure application it is saying-
Exception in thread "main" clojure.lang.ArityException: Wrong number of
args (0) passed to: core/-main.

Any help would be appreciated.

asked Dec 29 '18 at 6:15

ditri

I finally resolved the issue. There was a mistake in my Clojure code.

– ditri
Dec 29 '18 at 6:36

add a comment |

-1

Main.java:



  package com.example;

  import java.util.HashMap;

  import java.util.Map;

  import clojure.java.api.Clojure;

  import clojure.lang.IFn;

  class Main {

       public static void main( String args ) {

          IFn require = Clojure.var("clojure.core", "require");

          require.invoke(Clojure.read("com.example.core"));

          IFn Print  = Clojure.var("com.example.core", "Print");

          Map<String, String> map = new HashMap<>();

          map.put("message", "hello world");

          Print.invoke(map);

   }

}



core.clj:



   (ns com.example.core

        (:gen-class))

   (defn Print [m]

       (doseq [[k v] map] (prn k v)))

   (defn -Print [m]

        (Print m))

When I am trying to run the program as a java application, it is saying-
Exception in thread "main" java.lang.IllegalArgumentException: Don't know
how to create ISeq from: clojure.core$map.

When I am trying to run it as a clojure application it is saying-
Exception in thread "main" clojure.lang.ArityException: Wrong number of
args (0) passed to: core/-main.

Any help would be appreciated.

asked Dec 29 '18 at 6:15

ditri

Main.java:



  package com.example;

  import java.util.HashMap;

  import java.util.Map;

  import clojure.java.api.Clojure;

  import clojure.lang.IFn;

  class Main {

       public static void main( String args ) {

          IFn require = Clojure.var("clojure.core", "require");

          require.invoke(Clojure.read("com.example.core"));

          IFn Print  = Clojure.var("com.example.core", "Print");

          Map<String, String> map = new HashMap<>();

          map.put("message", "hello world");

          Print.invoke(map);

   }

}



core.clj:



   (ns com.example.core

        (:gen-class))

   (defn Print [m]

       (doseq [[k v] map] (prn k v)))

   (defn -Print [m]

        (Print m))

When I am trying to run the program as a java application, it is saying-
Exception in thread "main" java.lang.IllegalArgumentException: Don't know
how to create ISeq from: clojure.core$map.

When I am trying to run it as a clojure application it is saying-
Exception in thread "main" clojure.lang.ArityException: Wrong number of
args (0) passed to: core/-main.

Any help would be appreciated.

java clojure clojure-java-interop

asked Dec 29 '18 at 6:15

ditri

asked Dec 29 '18 at 6:15

ditri

asked Dec 29 '18 at 6:15

ditri

asked Dec 29 '18 at 6:15

ditri

asked Dec 29 '18 at 6:15

ditri

I finally resolved the issue. There was a mistake in my Clojure code.

– ditri
Dec 29 '18 at 6:36

add a comment |

I finally resolved the issue. There was a mistake in my Clojure code.

– ditri
Dec 29 '18 at 6:36

I finally resolved the issue. There was a mistake in my Clojure code.

– ditri
Dec 29 '18 at 6:36

add a comment |

1 Answer
1

active

oldest

votes

(defn Print [m]
(doseq [[k v] map] (prn k v)))

I think map is support to be m I guess

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

(defn Print [m]
(doseq [[k v] map] (prn k v)))

I think map is support to be m I guess

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

add a comment |

(defn Print [m]
(doseq [[k v] map] (prn k v)))

I think map is support to be m I guess

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

add a comment |

(defn Print [m]
(doseq [[k v] map] (prn k v)))

I think map is support to be m I guess

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

(defn Print [m]
(doseq [[k v] map] (prn k v)))

I think map is support to be m I guess

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

answered Dec 31 '18 at 10:02

Narendra Pinnaka

366

add a comment |

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