整個程序應該輸入組合鎖並接受組合。這是我遇到的問題。標識符預期和非法啓動類型的幾個錯誤。困惑
import java.util.*; // needed for Scanner
public class CombinationLock extends Lock
{
// Instance Variables
private String combination;
Scanner keyboard = new Scanner(System.in);
System.out.println("Enter Combination --> ");
String combo = keyboard.nextLine();
if(combination = combo)
{
super.open();
}
public String toString()
{
String str = super.toString() + "\n" +
"Combination = " + combination + "\n";
return str;
}
public void setCombination()
{
}
public boolean getCombination()
{
}
public CombinationLock()
{
super(); // call the default constructor of the Lock class
combination = "";
}
public CombinationLock(String combo)
{
super();
combination = combo;
}
}
這是我得到
--------------------Configuration: <Default>--------------------
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:10: error: <identifier> expected
System.out.println("Enter Combination ");
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:10: error: illegal start of type
System.out.println("Enter Combination ");
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:13: error: illegal start of type
if(combination = combo)
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:13: error: <identifier> expected
if(combination = combo)
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:13: error: ';' expected
if(combination = combo)
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:13: error: illegal start of type
if(combination = combo)
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:13: error: <identifier> expected
if(combination = combo)
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:14: error: ';' expected
{
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:15: error: illegal start of type
super.open();
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:18: error: class, interface, or enum expected
public String toString()
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:22: error: class, interface, or enum expected
return str;
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:23: error: class, interface, or enum expected
}
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:25: error: class, interface, or enum expected
public void setCombination()
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:30: error: class, interface, or enum expected
public boolean getCombination()
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:35: error: class, interface, or enum expected
public CombinationLock()
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:38: error: class, interface, or enum expected
combination = "";
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:39: error: class, interface, or enum expected
}
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:41: error: class, interface, or enum expected
public CombinationLock(String combo)
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:44: error: class, interface, or enum expected
combination = combo;
^
C:\Users\waki_\OneDrive\Documents\CombinationLock.java:45: error: class, interface, or enum expected
}
^
20 errors
Process completed.
的錯誤,我不知道是什麼導致的問題。我試圖找到其他答案,但沒有一個與我的問題有關。
您的代碼**不是在方法或初始化塊中**。 –