system.java

来自「专业汽车级嵌入式操作系统OSEK的源代码」· Java 代码 · 共 40 行

package java.lang;

/**
 * System utilities.
 */
public final class System
{
  private System() {}
  
  /**
   * Copies one array to another.
   */
  //public static native void arraycopy (Object src, int srcOffset, Object dest, int destOffset, int length);
  static void arraycopy (char[] src, int srcOffset, char[] dest, int destOffset, int length)
  {
    for (int i = 0; i < length; i++)
      dest[i + destOffset] = src[i + srcOffset]; 
  }

  /**
   * Terminate the application.
   */
  public static native void exit(int code);
    
  /**
   * Current time expressed in milliseconds. In the RCX, this is the number
   * of milliseconds since the RCX has been on. (In Java, this would
   * be since January 1st, 1970).
   */
  public static native long currentTimeMillis();
  
  /**
   * Get the singleton instance of Runtime.
   */
  public static Runtime getRuntime() {
  	return Runtime.getRuntime();
  }
}