NetBeans中的编译错误

Question

任何想法为什么NetBeans 7标记中的此代码与Deletion（删除是客户端软件包中的类）一致为错误？

package client; 

/** 
* 
* @author Arth 
*/ 
public class Client_Main 
{ 
    final String ORIGINAL_SEQUENCE =  "AAGCTGT"; 

     // Sample sequences demonstrating each type of DNA error 
     final String MUTATION_SEQUENCE =  "AATCTGT"; 
     final String TRANSPOSITION_SEQUENCE = "AAGTCGT"; 
     final String INSERTION_SEQUENCE =  "AAGACTG"; 
     final String DELETION_SEQUENCE =  "AGCTGTA"; 

     final String SEQUENCE_A =  "AAAAACCCCCGGGGGTTTTT"; 
     final String SEQUENCE_B =  "AAAACACCCCGGGGGTTTTT"; 

     public void check() 
     { 
      Deletion d("1","2"); 
     } 

} 

线：

Deletion d("1","2"); 

产生错误：

';' is expected

Answer 1

Deletion d = new Deletion("1","2"); 

Answer 2

此语法是非法的。如果你想创建一个新的对象，你应该要么使用就地初始化：

Deletion d = new Deletion("1", "2"); 

或声明之后初始化：

Deletion d; 
d = new Deletion("1", "2"); 

Answer 3

你真的没有给予足够的信息，但尝试

Deletion d = new Deletion("1", "2"); 

Answer 4

或者，如果您不是分配d，您可以直接简单地调用该对象，如下所示：

new Deletion("1", "2");