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I don't understand the difference in output between System.out.println((char)b) and System.out.write((char)b)


I don't understand the difference in output between System.out.println((char)b) and System.out.write((char)b)

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I don't understand the difference in output between System.out.println((char)b) and System.out.write((char)b)
Tag : java , By : zdyne
Date : December 02 2020, 10:46 PM

wish of those help write writes a byte to the output stream.
print writes a character to the output stream.
System.out.write((byte) 233); //233 is Integer.valueOf('é')
System.out.write(0xE9);

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Using write() system call to output dec/hex value of char array bufffer


Tag : c , By : zac
Date : March 29 2020, 07:55 AM
I wish this help you You could make a larger buffer, make the conversion from ASCII to hex/dec (as needed) in that and print the new one. I hope this example illustrates the idea:
#include <stdlib.h>
#include <io.h>

int main (int argc, char** argv)
{
    const char* pHexLookup = "0123456789abcdef";
    char pBuffer[] = {'a', 'b', 'c'}; // Assume buffer is the contents of the file you have already read in
    size_t nInputSize = sizeof(pBuffer); // You will set this according to how much your input read in
    char* pOutputBuffer = (char*)malloc(nInputSize * 3); // This should be sufficient for hex, since it takes max 2 symbols, for decimal you should multiply by 4
    for (size_t nByte = 0; nByte < nInputSize; ++nByte)
    {
        pOutputBuffer[3 * nByte] = pBuffer[nByte];
        pOutputBuffer[3 * nByte + 1] = pHexLookup[pBuffer[nByte] / 16];
        pOutputBuffer[3 * nByte + 2] = pHexLookup[pBuffer[nByte] % 16];
    }
    write(1 /*STDOUT_FILENO*/, pOutputBuffer, nInputSize * 3);
    free(pOutputBuffer);
    return EXIT_SUCCESS;
}

Why does `System.out.println(null);` give "The method println(char[]) is ambiguous for the type PrintStream error&q


Tag : java , By : user116330
Date : March 29 2020, 07:55 AM
will help you There are 3 println methods in PrintStream that accept a reference type - println(char x[]), println(String x), println(Object x).
When you pass null, all 3 are applicable. The method overloading rules prefer the method with the most specific argument types, so println(Object x) is not chosen.
System.out.println((String)null);

Automapper says Missing map from System.String to System.Char? But I see no Char property


Tag : chash , By : Gerhard Miller
Date : March 29 2020, 07:55 AM
Hope this helps The solution is to explicitly set mapping for the Departments and Titles fields:
CreateMap<UserReport, UserModel>()
    .ForMember(x => x.Departments, o => o.MapFrom(s => string.Join("\n", s.Departments)))
    .ForMember(x => x.Titles, o => o.MapFrom(s => string.Join("\n", s.Titles)));
IEnumerable<string> => IEnumerable<char>

Convert Char Input to Decimal Output - dont understand


Tag : c , By : unadopted
Date : March 29 2020, 07:55 AM
it should still fix some issue 10 is the ASCII code of the newline character, '\n'. You input this character when you hit Enter.

Fill char array with input and I dont understand the output


Tag : c , By : KL.
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further So I'm learning the char arrays in C. I wrote a little program which works with functions and reads input from terminal and on EOF will printf the char array. , There are multiple problems in your code:
#include <stdio.h>

const int MAXLENGTH = 10;
int getLine(char[], int);

int main(void) {
    char inputString[MAXLENGTH];

    getLine(inputString, MAXLENGTH);
    printf("%s\n", inputString);

    return 0;
}

// Functions:
int getLine(char destArray[], int length) {
    int i, c;
    for (i = 0; i < length - 1; i++) {
        c = getchar();
        if (c == EOF || c == '\n')
            break; 
        destArray[i] = c;
    }
    destArray[i] = '\0';
    return i;
}
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