how to change a int to char in c code example

Example 1: turn a char into an int in c

int x = character - '0';

Example 2: int to char in c

c = i +'0';

Example 3: casting an int to a char in c

Use ASCII chart.
int i=65;
char ch;
ch= (char)i;
printf("Expected value of ch: A. This value is found by using a ASCII chart");