arrayofgenerictype.java

来自「Thinking in JAVA第四版源代码」· Java 代码 · 共 14 行

//: arrays/ArrayOfGenericType.java
// Arrays of generic types won't compile.

public class ArrayOfGenericType<T> {
  T[] array; // OK
  @SuppressWarnings("unchecked")
  public ArrayOfGenericType(int size) {
    //! array = new T[size]; // Illegal
    array = (T[])new Object[size]; // "unchecked" Warning
  }
  // Illegal:
  //! public <U> U[] makeArray() { return new U[10]; }
} ///:~