#멋쟁이사자처럼 #부트캠프 #백엔드 #JAVA

Gemini: Primitive Types in Java

Java has 8 primitive data types:

• byte: 8-bit signed integer (-128 to 127)
• short: 16-bit signed integer (-32,768 to 32,767)
• int: 32-bit signed integer (-2,147,483,648 to 2,147,483,647)
• long: 64-bit signed integer (-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807)
• float: 32-bit single-precision floating-point number
• double: 64-bit double-precision floating-point number
• boolean: Represents true or false values
• char: 16-bit Unicode character

Practice: Print from 0 to 100

public class Practice01 {
    public static void main(String[] args) {
        int value = 0;

        while (value <= 100) {
            System.out.println(value);
            value++;
        }
    }
}

Practice: If Statements without Curly Braces

public class Practice02 {
    public static void main(String[] args) {
        int value = 18;

        if (value % 3 == 0)
            System.out.println("18 mod 3 is 0");

        System.out.println("--------------");

        if (value % 3 == 0) {
            System.out.println("18 mod 3 is 0");
            System.out.println("18 mod 3 is 0");
        }
    }
}

&& Operator