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Java exercises

First contact with Java
Create a program (in Java) to print Hello on screen and then print your name (in a separate line)....

Sum of two numbers
Write a Java program to print the result of adding 12 and 13 on screen....

Division of two numbers
Write a Java program to print the result of dividing 24 by 5 on the screen....

Multiple operations and precedences
Create a Java program to print the result of the following operations: -1 + 3 * 5 (24 + 5) % 7 15 + (-4) * 6 / 11 2 + 10 / 6 * 1 - 7 % 2...

Multiply using variables
Write a Java program to print the result of multiplying two numbers which will entered by the user....

Use of {0} and comments
Write a Java program to ask the user for three numbers and display their multiplication. The first line must be a comment with your name and surname. ...

Several operations
Write a Java program to print on screen the result of adding, subtracting, multiplying and dividing two numbers typed by the user. The remainder of th...

Multiplication table
Write a Java program to ask the user for a number and display its multiplication table, like this: Please enter a number: 5 The multiplication ...

Average
Write a Java program to calculate and display the average of four numbers entered by the user....

Equivalent operations
Write a Java program to ask the user for three numbers (a, b, c) and display the result of (a+b)·c and the result of a·c + b·c....

Age
Write a Java program to ask the user for their age (e.g. 20) and respond with something like "You look younger than 20" (the age entered by the user s...

Formats
Write a Java program to ask the user for a number and display it four times in a row, separated with blank spaces, and then four times in the next row...

Rectangle
Write a Java program to ask the user for a number and then display a rectangle 3 columns wide and 5 rows tall using that digit. For example: Enter ...

Conversion
Create a Java program to convert Celsius degrees to Kelvin and Fahrenheit. The program will prompt the user to input the temperature in Celsius degree...