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                            #### J2SE 5
![](https://img.kancloud.cn/63/13/6313164f1f13f60fbc407068b99bec8e_382x252.png)

#### JAVA SE7
![](https://img.kancloud.cn/a5/1a/a51a2f09d328d6a992ef90e986ae6a4d_773x285.png)

* ### java.util.concurrnet.forkjoin
* 多重捕獲

```
        try {
            int i = 100 / 0;
        } catch (ArithmeticException | ArrayIndexOutOfBoundsException e) {
            e.printStackTrace();
        }
```

#### JDK8新特性

* 從JDK8開始，可以顯示將this聲明為方法的第一個參數，在這種聲明中，this的類型必須是其類的類型

```
public void say(ReflectMain this,int num) {}       ##只有需要對this使用類型注解時，才需要顯示聲明this
```

* JDK8新增的@Target類型TYPE\_PARAMETER、TYPE\_USE

JavaSE & JavaEE & JavaME

![](https://img.kancloud.cn/f7/d2/f7d24a96cfcb5590b25afcb155723325_815x263.png)


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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