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class StringTest03 { public static void main(String[] args) { int a=0; StringBuffer str01 =new StringBuffer(); str01.append("You know I still love you baby And it will never change. I want nobody nobody but you!I want nobody nobody but you!난 다른 사람이 싫어, 니가 아니면 싫어.I want nobody, nobody, nobody, nobody난 싫은데 왜 날 밀어내려고 하니자꾸 내 말은 듣지 않고왜 이렇게 다른 남자에게 날 보내려 하니어떻게 이러니 "); System.out.println(find(a,str01))..

class StringTest03 { public static void main(String[] args) { StringBuffer str01 =new StringBuffer(); str01.append("Java"); System.out.println(str01.toString() ); str01.append(" 프로그래밍"); System.out.println(str01 ); str01.replace(0,4,"MFC"); System.out.println(str01 ); String str02= str01.substring(3); System.out.println(str01 ); System.out.println(str02 ); str01.deleteCharAt(1); System.out.print..

import java.io.*; import java.util.*; class WrapperTest { public static void main(String[] args) { /*Integer num01 =new Integer(10); Integer num02 =new Integer("20"); int n01=num01.intValue(); //기본형 데이터로 강제적 변환 int n02=num02.intValue(); int sum=n01+n02; System.out.println(sum); System.out.println(Integer.toBinaryString(sum)); System.out.println(Integer.toOctalString(sum)); System.out.println(Int..

class WrapperTest { public static void main(String[] args) { Integer num01 =new Integer(10); Integer num02 =new Integer("20"); int n01=num01.intValue(); //기본형 데이터로 강제적 변환 int n02=num02.intValue(); int sum=n01+n02; System.out.println(sum); System.out.println(Integer.toBinaryString(sum)); System.out.println(Integer.toOctalString(sum)); System.out.println(Integer.toHexString(sum));//다 문자열로 반환 시켜주는 ..