How to call a String returning java method from C JNI?

Question

There are many functions available for calling java from C, However there is no function for call String returning java methods. Can someone please advise how I can call string returning java method from C?

    CallBooleanMethod,
    CallBooleanMethodV,
    CallBooleanMethodA,
    CallByteMethod,
    CallByteMethodV,
    CallByteMethodA,
    CallCharMethod,
    CallCharMethodV,
    CallCharMethodA,
    CallShortMethod,
    CallShortMethodV,
    CallShortMethodA,
    CallIntMethod,
    CallIntMethodV,
    CallIntMethodA,
    CallLongMethod,
    CallLongMethodV,
    CallLongMethodA,
    CallFloatMethod,
    CallFloatMethodV,
    CallFloatMethodA,
    CallDoubleMethod,
    CallDoubleMethodV,
    CallDoubleMethodA,
    CallVoidMethod,
    CallVoidMethodV,
    CallVoidMethodA,

Ingo Leonhardt · Accepted Answer · 2014-09-02 11:38:32Z

1

You can use CallObjectMethod() and friends. If the JAVA method returns String. then the jobject returned can be cast to jstring and you can use GetStringChars() to obtain a jchar *

answered Sep 2, 2014 at 11:38

Ingo Leonhardt

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1 Comment

Tom Blodget Over a year ago

Note: GetStringChars() returns a pointer to an unterminated sequence of UTF-16 code units (jchar), which is excellent if that's what you want. (You can get the jchar count with GetStringLength.)

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