JAVA 타입 확인방법

JAVA 타입 확인방법

방법 1. 단순하게 구현가능

변수명.getClass().getName() 참고: int 불가능, Integer 가능

방법 2. 기본자료형 타입 확인 함수

public class typeCheck {
    public static void main(String[] args) {
        String str1 = 3 + "" + 2;
        Typetester test = new Typetester();
        test.printType(str1);
    }
}

class Typetester {
    void printType(byte x) {
        System.out.println(x + " is an byte");
    }
    void printType(int x) {
        System.out.println(x + " is an int");
    }
    void printType(float x) {
        System.out.println(x + " is an float");
    }
    void printType(double x) {
        System.out.println(x + " is an double");
    }
    void printType(char x) {
        System.out.println(x + " is an char");
    }
    void printType(String x) {
        System.out.println(x + " is an String");
    }
}