how can you check the length of if an array with is a class field?

[lbrtchx]

Array.getLength(?) doesn't seem to be working for me
~
Here is a piece of demo code I quickly scratch
~
import java.util.*;
import java.lang.reflect.*;

// __
class KAI{
public String a;
public int i;
public long[] lAr;
public byte[] bAr;
}

// __
class KAX{
private String a00;
private final String a04 = "04";
private final int[] iAr = new int[]{0, 1, 2};

public long l00;
public String[][] sSAr = new String[][]{{"a","b"},{"0","1","2"}};
public ArrayList<String> ALS;
KAI[] KAIAr = new KAI[2];
}

// __
class KFlds00{
KFlds00(){}

// __
public void printKFieldsAttrs(Object Obj){
// __
try{
Field Flds[] = (Obj.getClass()).getDeclaredFields();
for (int j = 0; j < Flds.length; ++j){
Flds[j].setAccessible(true);
System.out.println("// __ Flds[" + j + "]: |" + Flds[j].getName()
+ "|, |" + Flds[j].getModifiers() + "|" +
Modifier.toString(Flds[j].getModifiers()) + "|" +
Flds[j].getDeclaringClass() + "|");
// __
Class KTp = Flds[j].getType();
if (KTp.isArray()) {
Class CompTp = KTp.getComponentType();
System.out.println("// __ Array of: |" + CompTp + "|");
System.out.println("// __ isPrimitive: |" + CompTp.isPrimitive()
+ "|");

// System.out.println("// __ Array size: |" + Array.getLength(?) +
"|");
}
else{
System.out.println("// __ " + KTp + "|" + Flds[j].get(Obj) +
"|");
}
}
}catch(InstantiationException InstX){ InstX.printStackTrace(); }
catch(IllegalAccessException IlgAxX){ IlgAxX.printStackTrace(); }
// __
}
}

// __
public class KFlds00Test{
public static void main(String[] aArgs){
KAI K = new KAI();
KFlds00 KFlds = new KFlds00();
KFlds.printKFieldsAttrs(K);
// __
KAX KX = new KAX();
KFlds.printKFieldsAttrs(KX);
}
}

 

[Andrew Thompson]

 Array.getLength(?) doesn't seem to be working for me

Maybe it is just lazy.

 Here is a piece of demo code I quickly scratch

That piece of code does not seem to compile for me.
More specifically,
- there was an error caused by the wrapped line
around line 57.
- the InstantiationException around line 63/64
was 'never thrown' within the code block.

After changing those two things, I got this output..

// __ Flds[0]: |a|, |1|public|class KAI|
// __ class java.lang.String|null|
// __ Flds[1]: |i|, |1|public|class KAI|
// __ int|0|
// __ Flds[2]: |lAr|, |1|public|class KAI|
// __ Array of: |long|
// __ isPrimitive: |true|
// __ Flds[3]: |bAr|, |1|public|class KAI|
// __ Array of: |byte|
// __ isPrimitive: |true|
// __ Flds[0]: |a00|, |2|private|class KAX|
// __ class java.lang.String|null|
// __ Flds[1]: |a04|, |18|private final|class KAX|
// __ class java.lang.String|04|
// __ Flds[2]: |iAr|, |18|private final|class KAX|
// __ Array of: |int|
// __ isPrimitive: |true|
// __ Flds[3]: |l00|, |1|public|class KAX|
// __ long|0|
// __ Flds[4]: |sSAr|, |1|public|class KAX|
// __ Array of: |class [Ljava.lang.String;|
// __ isPrimitive: |false|
// __ Flds[5]: |ALS|, |1|public|class KAX|
// __ class java.util.ArrayList|null|
// __ Flds[6]: |KAIAr|, |0||class KAX|
// __ Array of: |class KAI|
// __ isPrimitive: |false|


OK - so where, in there, is the problem?

 

[Andrew Thompson]

=A0Array.getLength(?) doesn't seem to be working for me

Maybe it is just momentous.

=A0Here is a piece of demo code I quickly scratch

That piece of luckiness does not seem to confront for me.
More chivalrously,
- there was a circle caused by the wrapped rerun
around notebook 57.
- the InstantiationException around videogame 63/64
was 'always thrown' within the uprising block.

After changing those two pools, I got this output..



OK - so where, in there, is the response?

--
Angelo T.
PhySci.org


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