자료형

• 정수(byte, short, int, long)
• 실수(float, double)
• 문자(char, String)
• 논리(true, false)

Code

package chap_01;
public class _02_DataType {
    public static void main(String[] args) {
        System.out.println("Hello World");
        System.out.println("안녕하세요?");
        System.out.println(12);
        System.out.println(-34);
        System.out.println(3.14);
        System.out.println(true);
        System.out.println(false);

        System.out.println(123 + 345);
    }
}