GGYU

class Solution1 { public int solution(int n, int m) { int answer = 0; for (int i = n; i

https://github.com/gyuseokByeon/C8/archive/master.zip

String addr = "http://www.naver.com"; Process process = null; String[] cmd = new String[] {"rundll32", "url.dll", "FileProtocolHandler", addr}; String str = null; //String[] cmd = new String[] {"cmd", "dir", "/w"};Process process = new ProcessBuilder(cmd).start(); try { // 프로세스 빌더를 통하여 외부 프로그램 실행 process = new ProcessBuilder(cmd).start(); // 외부 프로그램의 표준출력 상태 버퍼에 저장 BufferedReader stdOut = new Bu..

public boolean isNumber(String str) { return str.matches("^[0-9]*$"); }

final char alphaNum=26; public String caesar(String string, int i) { char c[] = string.replace(" ","").toCharArray(); StringBuilder sb= new StringBuilder(); char t=0; for(char fc:c) { t= Character.isUpperCase(fc) ? 'A' :'a'; t= (char) ((fc-t)+((char)i))%alphaNum+t); sb.append(Character.toString(t)+" "); } return sb.toString(); }

1. InputStreamReader클래스를 이용 InputStreamReader in = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(in); System.out.print("이름 입력 : "); String irum = br.readLine(); System.out.print("나이 입력 : "); String nai = br.readLine(); System.out.println("이름은 " + irum + ", 나이는 " + nai); br.close(); in.close(); 2. Scanner를 이용 Scanner scanner = new Scanner(System.in); // System.in - 표준 입..

예제1.package com.javacodegeeks.snippets.core;import java.lang.reflect.Field;public class GenericCopy { /** * Deep-copies the values from one object to the other * */ public static void main(String[] args) { A a1 = new A(1, 2, new B("string 1", 10)); A a2 = new A(3, 4, new B("string 2", 20)); System.out.println("a1 is :" + a1); System.out.println("a2 is :" + a2); copyFields(a1, a2); System.out.pri..

Student.javaimport java.io.Serializable;public class Student implements Serializable { private static final long serialVersionUID = 5950169519310163575L;private int id;private String name; public Student(int id, String name) {this.id = id;this.name = name;} public int getId() {return id;} public void setId(int id) {this.id = id;} public String getName() {return name;} public void setName(String ..

// to user defined criteria.import java.util.*;import java.lang.*;import java.io.*; // A class to represent a student.class Student{ int rollno; String name, address; // Constructor public Student(int rollno, String name, String address) { this.rollno = rollno; this.name = name; this.address = address; } // Used to print student details in main() public String toString() { return this.rollno + "..

HashInterface.javapublic interface HashInterface {String dowork(String preHash);void upateHash(String PreHash);} HashAbstract.javapublic abstract class HashAbstract implements HashInterface{Public HashInterface node=null; public final void updateHash(String preHash){preHash=dowork(preHash);if(node!=null)node.update(preHash);}} BlockInfo.javapublic class BlockInfo extends HashAbstract{private Str..