Master fundamental Java concepts with these beginner-friendly programs
A program to convert an integer to a string.
Write a program to convert an integer to a string.
123
String: "123"
Integer.toString() to convert an integer to a string.A program to convert a string to an integer.
Write a program to convert a string to an integer.
"456"
Integer: 456
Integer.parseInt() to convert a string to an integer.A program to convert a double to a string.
Write a program to convert a double to a string.
3.14
String: "3.14"
Double.toString() to convert a double to a string.A program to convert a character to a string.
Write a program to convert a character to a string.
'A'
String: "A"
Character.toString() to convert a character to a string.A program to convert a string to a character array.
Write a program to convert a string to a character array.
"Hello"
Character Array: ['H', 'e', 'l', 'l', 'o']
toCharArray() method to convert a string into a character array.A program to convert an integer to binary, octal, and hexadecimal.
Write a program to convert an integer to binary, octal, and hexadecimal.
25
Binary: 11001
Octal: 31
Hexadecimal: 19
Integer.toBinaryString() method to convert the integer to binary.Integer.toOctalString() method to convert the integer to octal.Integer.toHexString() method to convert the integer to hexadecimal.A program to convert a binary number to a decimal.
Write a program to convert a binary number to a decimal.
"1010"
Decimal: 10
Integer.parseInt() method is used to convert a string to an integer.parseInt() specifies the base of the number (2 for binary).A program to convert a decimal number to binary.
Write a program to convert a decimal number to binary.
13
Binary: 1101
Integer.toBinaryString() method is used to convert a decimal number to its binary equivalent.A program to convert temperature from Fahrenheit to Celsius.
Write a program to convert temperature from Fahrenheit to Celsius.
Formula: C = (F - 32) * 5/9
100 (Fahrenheit)
Celsius: 37.78
String.format("%.2f", celsius).A program to convert a string to a double.
Write a program to convert a string to a double.
"2.718"
Double: 2.718
"2.718" is converted to a double using Double.parseDouble().