Sizeof and Length of character array

char  str[ ] = "aaa";

Code written by myself:

#include<stdio.h>
int main() {
    char str[] = "aaa";
    int i = 0;
    printf("%ld\n", sizeof(str));
    while (str[i] != '\0') {
        printf("%c\n", str[i]);
        i++;
    }
    printf("%d\n", i);
    return 0;
}

Compile and run:

char  str[ ] = { 'a' , 'a' , 'a'};

Code written by myself:

#include<stdio.h>
int main() {
    char str[] = {'a', 'a', 'a'};
    int i = 0;
    printf("%ld\n", sizeof(str));
    while (str[i] != '\0') {
        printf("%c\n", str[i]);
        i++;
    }
    printf("%d\n", i);
    return 0;
}

Compile and run:

char  str[3] = "aaa";

Code written by myself:

#include<stdio.h>
int main() {
    char str[3] = "aaa";
    int i = 0;
    printf("%ld\n", sizeof(str));
    while (str[i] != '\0') {
        printf("%c\n", str[i]);
        i++;
    }
    printf("%d\n", i);
    return 0;
}

Compile and run:

char  str[10] = "aaa";

Code Written by myself:

#include<stdio.h>
int main() {
    char str[10] = "aaa";
    int i = 0;
    printf("%ld\n", sizeof(str));
    while (str[i] != '\0') {
        printf("%c\n", str[i]);
        i++;
    }
    printf("%d\n", i);
    return 0;
}

Compile and run:

char  str[3] = { 'a', 'a', 'a' };

Code written by myself:

#include<stdio.h>
int main() {
    char str[3] = {'a', 'a', 'a'};
    int i = 0;
    printf("%ld\n", sizeof(str));
    while (str[i] != '\0') {
        printf("%c\n", str[i]);
        i++;
    }
    printf("%d\n", i);
    return 0;
}

Compile and run:

char  str[10] = { 'a', 'a', 'a'};

Code written by myself:

#include<stdio.h>
int main() {
    char str[10] = {'a', 'a', 'a'};
    int i = 0;
    printf("%ld\n", sizeof(str));
    while (str[i] != '\0') {
        printf("%c\n", str[i]);
        i++;
    }
    printf("%d\n", i);
    return 0;
}

Compile and run:

char  str[10];  str = "aaa";

Code written by myself:

#include<stdio.h>
int main() {
    char str[10];
    str = "aaa";
    int i = 0;
    printf("%ld\n", sizeof(str));
    while (str[i] != '\0') {
        printf("%c\n", str[i]);
        i++;
    }
    printf("%d\n", i);
    return 0;
}

Compile and run:

char  stra[ ] = "aaa";  char  strb[ ] = "bbb";

Code written by myself:

#include<stdio.h>
int main() {
    char stra[] = "aaa";
    char strb[] = "bbb";
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    while (stra[i] != '\0') {
        printf("%c  ", stra[i]);
        i++;
    }
    printf("\n%d\n", i);
    while (strb[j] != '\0') {
        printf("%c  ", strb[j]);
        j++;
    }
    printf("\n%d\n", j);
    return 0;
}

Compile and run:

char  stra[ ] = { 'a', 'a', 'a'};  char strb[ ] = { 'b', 'b', 'b'};

Code written by myself:

#include<stdio.h>
int main() {
    char stra[] = {'a', 'a', 'a'};
    char strb[] = {'b', 'b', 'b'};
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    printf("%s\n%s\n", stra, strb);
    while (stra[i] != '\0') {
        i++;
    }
    printf("%d\n", i);
    while (strb[j] != '\0') {
        j++;
    }
    printf("%d\n", j);
    return 0;
}

Compile and run:

char  stra[3] = { 'a', 'a', 'a'};  char  strb[3] = { 'b', 'b', 'b'};

Code written by myself:

#include<stdio.h>
int main() {
    char stra[3] = {'a', 'a', 'a'};
    char strb[3] = {'b', 'b', 'b'};
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    printf("%s\n%s\n", stra, strb);
    while (stra[i] != '\0') {
        i++;
    }
    printf("%d\n", i);
    while (strb[j] != '\0') {
        j++;
    }
    printf("%d\n", j);
    return 0;
}

Compile and run:

char  stra[10] = { 'a', 'a', 'a'};  char  strb[10] = { 'b', 'b', 'b'};  

Code written by myself:

#include<stdio.h>
int main() {
    char stra[10] = {'a', 'a', 'a'};
    char strb[10] = {'b', 'b', 'b'};
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    printf("%s\n%s\n", stra, strb);
    while (stra[i] != '\0') {
        i++;
    }
    printf("%d\n", i);
    while (strb[j] != '\0') {
        j++;
    }
    printf("%d\n", j);
    return 0;
}

Compile and run:

char  stra[ ] = "aaa";    char  strb[ ] = { 'b', 'b', 'b'};

Code written by myself:

#include<stdio.h>
int main() {
    char stra[] = "aaa";
    char strb[] = {'b', 'b', 'b'};
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    printf("%s\n%s\n", stra, strb);
    while (stra[i] != '\0') {
        i++;
    }
    printf("%d\n", i);
    while (strb[j] != '\0') {
        j++;
    }
    printf("%d\n", j);
    return 0;
}

Compile and run:

char  stra[3] = "aaa";    char  strb[3] = { 'b', 'b', 'b'}; 

Code written by myself:

#include<stdio.h>
int main() {
    char stra[3] = "aaa";
    char strb[3] = {'b', 'b', 'b'};
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    printf("%s\n%s\n", stra, strb);
    while (stra[i] != '\0') {
        i++;
    }
    printf("%d\n", i);
    while (strb[j] != '\0') {
        j++;
    }
    printf("%d\n", j);
    return 0;
}

Compile and run:

char  stra[10] = "aaa";    char  strb[10] = { 'b', 'b', 'b'};  

Code written by myself:

#include<stdio.h>
int main() {
    char stra[10] = "aaa";
    char strb[10] = {'b', 'b', 'b'};
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    printf("%s\n%s\n", stra, strb);
    while (stra[i] != '\0') {
        i++;
    }
    printf("%d\n", i);
    while (strb[j] != '\0') {
        j++;
    }
    printf("%d\n", j);
    return 0;
}

Compile and run:

char  stra[ ] = "aaa";    char  strb[ ] = { 'b', 'b', 'b', '\0'};   

Code written by myself:

#include<stdio.h>
int main() {
    char stra[] = "aaa";
    char strb[] = {'b', 'b', 'b', '\0'};
    int i = 0, j = 0;
    printf("%ld  %ld\n", sizeof(stra), sizeof(strb));
    printf("%s\n%s\n", stra, strb);
    while (stra[i] != '\0') {
        i++;
    }
    printf("%d\n", i);
    while (strb[j] != '\0') {
        j++;
    }
    printf("%d\n", j);
    return 0;
}

Compile and run: