문자열 테스트

 

[문자열찾기] (메소드사용)

public class StringEx3 {
  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    //  String s = "www.Java.com";
    String s = "";
    while (true) {
      System.out.println("URL입력하기");
      s = in.nextLine();
      String sLow = s.toLowerCase();

      if (sLow.equals("bye")) break;
      if (s.contains("java")) {
        System.out.println("자바를포함합니다.");
      }
      if (s.endsWith(".com")) {
        System.out.println(".com으로 끝납니다.");
      }
    }
  }
}

 

 

 

 

[가위바위보 랜덤출력]

System.out.println((int)Math.random()*3); // 모두0 이됨


//->수정

 

System.out.println((int)(Math.random()*3));

public class RadomEx4 {
  public static void main(String[] args) {

    String[] name = {"가위", "바위", "보"};
    System.out.println(name);
    System.out.println(Arrays.toString(name));
    int index;
    double random;
    for(int i=0; i<10; i++){
      index = (int)(Math.random()*3);
      System.out.println(name[index]);
      		}
      }