這個(gè)設(shè)置了，這是我的代碼，我跟視頻上不完全一樣，一個(gè)是測(cè)試，一個(gè)thread，謝謝了

package?project_thread;



public?class?EnergyThread?extends?Thread?{
	
	
	private?final?double[]?energy_box;
	private?double?energy_max;
	private?Object?lock=new?Object();
?????@Override
????public?void?run()?{
????	//?TODO?Auto-generated?method?stub
????	
????	?while?(true)?{
			int?from=(int)?(Math.random()*getlength());
			int?to?=(int)?(Math.random()*getlength());
			double?energy=Math.random()*energy_max;
			int?time=(int)?(Math.random()*50);
			energy_tansform(from,?to,?energy);
			try?{
				sleep(time);
			}?catch?(InterruptedException?e)?{
				//?TODO?Auto-generated?catch?block
				e.printStackTrace();
			}
			
		}
????}
?????public?EnergyThread(double?energy_initial,int??n)?{
		//?TODO?Auto-generated?constructor?stub
????	?this.energy_box=new?double[n];
????	?this.energy_max=energy_initial;
????	?for?(int?i?=?0;?i?<?n;?i++)?{
			energy_box[i]=energy_initial;
		}
	}
?????
?????public?int?getenergy_total()?{
????	?double?total=0;
????	?for?(double?d?:?energy_box)?{
			total+=d;
		}
		return?(int)total;
	}
?????
?????public?void?energy_tansform(int?from,int?to?,double?energy)?{
		synchronized?(lock)?{
			if(energy_box[from]<energy){
				try?{
					lock.wait();
				}?catch?(InterruptedException?e)?{
					//?TODO?Auto-generated?catch?block
					e.printStackTrace();
				}
				
			}
			energy_box[from]-=energy;
			energy_box[to]+=energy;
			System.out.println(getName()+":energy_box["+from+"]向energy_box["+to+"]轉(zhuǎn)移"+energy+"energy_total="+getenergy_total());
			lock.notifyAll();
		}
	}
?????
?????public?int??getlength()?{
		return?energy_box.length;
	}
}

package?project_thread;

public?class?ThreadTest?{

	public?static?void?main(String[]?args)?{
		//?TODO?Auto-generated?method?stub
????????
?????????for(int?i=0;i<100;i++){
????????	?Thread?thread=new?EnergyThread(1000,100);
????????	?thread.start();
?????????}
????????
	}

}

對(duì)著視頻再檢查一下吧，

你看一下run方法里的amount有沒有寫對(duì)，double amount=maxAmount*Math.random();

transfer的時(shí)候amout必須滿足amount<=amxAmount，不然就會(huì)造成死鎖