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JavaDataType.java

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package ch04;

public class JavaDataType {

public static void main(String[] args) {

// 참조형 선언(자바 9 버전부터는 사용되지 않음)

Integer intRef = new Integer(7);

// 문자형으로 변환하여 출력

System.out.println(intRef.toString());

}

}