Description

1. Write a Java program to convert an octal number to a binary number.

2. Write a Java program to convert an octal number to a decimal number.

3. Write a Java program to compare two numbers.

4. Write a Java program to create and display unique three-digit number using 1, 2, 3, 4. Also count how many three-digit numbers are there.

5. Write a Java program to find the size of a specified file.

7. Write a Java program to calculate the sum of two integers and return true if the sum is equal to a third integer.

8. Write a Java program to calculate the sum of two integers and return true if the sum is equal to a third integer.

9. Write a Java program to extract the first half of a string of even length.

10. Write a Java program to create a new string taking first and last characters from two given strings. If the length of either string is 0 use “#” for missing character.
Test Data: str1 = “Python”
str2 = ” ”
Sample Output: P#