どれが線形検索と二分探索の効率ですか

Question

public enum Color { 
    Red, Orange, Yellow, Green, Cyan, Blue, Purple; 


    private boolean isRGB(Color color) 
    { 


    boolean b; 

    switch(color){ 
     case Red: 
      System.out.println("Monday is a work day!!"); 
      break; 
     case Orange: 
      System.out.println("Tusday is a work day!!"); 
     case Yellow: 
      System.out.println("Wednesday is a work day!!"); 
     case Green: 
      System.out.println("Thursday is a work day!!"); 
     case Cyan: 
      System.out.println("Friday is a work day!!"); 
     default: b = false; 

     System.out.println("Sorry this is not a working day!!\nn"); 
     System.out.println("It's weekend!!!"); 
    } 
    return(b); 
} 

これは自分で試したコードです。 返品（b）に1つのエラーがあり、「b」が初期化されていないと言っています....助けてください。

Answer 1

boolean b = true; 

Answer 2

public enum Color{//......で

boolean b; 

を交換してください - ドットが先生によって追加されたが、何も追加するように求めませんでした。

public enum Color { 
    Red, Orange, Yellow, Green, Cyan, Blue, Purple;  
} 

private boolean isRGB(Color color) { 

    boolean b = false; 

    switch (color) {// i supposed to fill the blank switch(  ) 
     //And also i supposed write all the statements for switch, thats all was required me to do!! 
     case Red: 
      System.out.println("Monday is a work day!!"); 
      break; 
     case Orange: 
      System.out.println("Tusday is a work day!!"); 
      break; 
     case Yellow: 
      System.out.println("Wednesday is a work day!!"); 
      break; 
     case Green: 
      System.out.println("Thursday is a work day!!"); 
      break; 
     case Cyan: 
      System.out.println("Friday is a work day!!"); 
      break; 

     default: 
      b = false; 

      System.out.println("Sorry this is not a working day!!\nn"); 
      System.out.println("It's weekend!!!"); 

    } 
    return (b); 
}