Beautifulkim 2018. 5. 30. 15:52
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package append;
 
public class Append {
 
    public static void main(String[] args) {
 
        StringBuffer stringBuffer = new StringBuffer();
        stringBuffer.append("hello");
        stringBuffer.append(" ");
        stringBuffer.append("jump to java");
        System.out.println(stringBuffer.toString());
        
/*
            "Object"클래스가 가진 메소드 중에서 
            "toString"메소드가 있습니다.
            
            "toString"메소드는 
            객체가 가지고 있는 정보나 값들을 
            문자열로 만들어 리턴하는 메소드 
            
            아래 코드에서 stringBuffer를 출력하면 
            stringBuffer.toString()정보를 호출한것과 동일
            System.out.println(stringBuffer);
            System.out.println(stringBuffer.toString());
*/
        
        
        
    }
 
}
 
cs