package lectures.types.char_string;
import util.annotations.WebDocuments;
@WebDocuments({"Lectures/TypesCharString.pptx", "Lectures/TypesCharString.pdf", "Videos/TypesCharString.avi"})
public class ACharAndStringDemoer {
void charOrder() {
System.out.println('a' > 'b');
System.out.println('B' > 'A');
System.out.println('4' > '0');
System.out.println('a' > 'A');
System.out.println('a' > '0');
}
void charToInt() {
System.out.println((int) 'c' - (int) 'a');
System.out.println('c' - 'a');
System.out.println((char) ('c' - 2));
System.out.println((char) ('A' + 2));
System.out.println((char) ('C' - 'A' + 2));
}
void isLetter() {
System.out.println(Character.isLetter('c'));
System.out.println(Character.isLetter('A'));
System.out.println(Character.isLetter('1'));
System.out.println(Character.isLetter(' '));
char c = '?';
System.out.println(Character.isLetter(c));
}
void chartAtAndLength() {
String s = "hello world";
System.out.println(s.charAt(0));
System.out.println(s.charAt(1));
System.out.println(s.charAt(11));
System.out.println(s.length());
System.out.println(" ".length());
System.out.println("".length());
}
void stringConstants() {
String s = "hello";
s = "123";
s = "hello 123";
s = "";
s = "hello\n\n 123";
s = "\\";
}
void subString() {
System.out.println("hello world".substring(4, 7));
System.out.println("hello world".substring(4, 4));
System.out.println("hello world".substring(7, 4));
}
void stringToUpperLowerCase() {
System.out.println("Hello World".toLowerCase());
System.out.println("Hello World".toUpperCase());
}
}