#savol
Berilgan so'zni toLowerCase(), toUpperCase() method larni ishlatmagan holda katta harflardan kichik harflarga, kichik harflardan katta harflarga o'tkazuvchi funksiya yozing?

#javob
#lowerCase
#upperCase
Java dasturlash tilida

public class LowerAndUpper {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
char[] str = scanner.next().toCharArray();
System.out.println(myLowerCase(str));
System.out.println(myUpperCase(str));
}

private static char[] myLowerCase(char[] chars) {
char[] newArray = new char[chars.length];
for (int i = 0; i < chars.length; i++) {
if (chars[i] >= 97 && chars[i] <= 122) {
newArray[i] = chars[i];
} else {
newArray[i] = (char) (chars[i] + 32);
}
}
chars = newArray;
return chars;
}

private static char[] myUpperCase(char[] chars) {
char[] newArray = new char[chars.length];
for (int i = 0; i < chars.length; i++) {
if (chars[i] >= 65 && chars[i] <= 90) {
newArray[i] = chars[i];
} else {
newArray[i] = (char) (chars[i] - 32);
}
}
chars = newArray;
return chars;
}
}

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#savol
Berilgan so'zni toLowerCase(), toUpperCase() method larni ishlatmagan holda katta harflardan kichik harflarga, kichik harflardan katta harflarga o'tkazuvchi funksiya yozing?

#javob
#lowerCase
#upperCase
Kotlin dasturlash tilida

fun main() {
val scanner = Scanner(System.in)
val str = scanner.next().toCharArray()
println(myLowerCase(str))
println(myUpperCase(str))
}

fun myLowerCase(chars: CharArray): CharArray {
var chars = chars
val newArray = CharArray(chars.size)
for (i in chars.indices) {
if (chars[i].toInt() in 97..122) {
newArray[i] = chars[i]
} else {
newArray[i] = (chars[i].toInt() + 32).toChar()
}
}
chars = newArray
return chars
}

fun myUpperCase(chars: CharArray): CharArray {
var chars = chars
val newArray = CharArray(chars.size)
for (i in chars.indices) {
if (chars[i].toInt() in 65..90) {
newArray[i] = chars[i]
} else {
newArray[i] = (chars[i].toInt() - 32).toChar()
}
}
chars = newArray
return chars
}

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#savol

#javob
#for17
Java dasturlash tilida

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("n = ");
int n = scanner.nextInt();
System.out.print("a = ");
float a = scanner.nextFloat();
int s = 1;
int t = 1;
for (int i = 0; i < n; i++) {
t *= a;
s += t;
}
System.out.println(s);
}

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#savol
isDigit nomli funksiyasi yarating va parametrga String ko'rinishida satr berilgan bo'lsin. Satr tarkibida raqam bor yoki yo'qligi topuvchi dastur tuzing. Agar satr tarkibida son bo'lsa true, aks holda false qiymat qaytaring?

#javob
#isDigit
Java dasturlash tilida

public class isDigitFunction {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println(isDigit(scanner.nextLine()));
}

private static boolean isDigit(String str){
for (int i = 0; i < str.length(); i++) {
char ch = str.charAt(i);
if (ch >= 48 && ch <= 57){
return true;
}
}
return false;
}
}

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