list集合对象去重

今天突然遇到list集合对象去重的问题,在这里记录一下解决方法,自己觉得还不错。

在list集合里去掉重复对象,只要把它强转成set集合就可以了,

List<Student> stu = new ArrayList<Student>();  
        stu.add(new Student("1","yi"));  
        stu.add(new Student("3","san"));  
        stu.add(new Student("1","yi"));  
        stu.add(new Student("3","san"));  
        stu.add(new Student("2","er"));  
        stu.add(new Student("1","yi"));  
        stu.add(new Student("3","san"));  
        stu.add(new Student("2","er"));  
        //set集合保存的是引用不同地址的对象  
        Set<Student> ts = new HashSet<Student>();  
        ts.addAll(stu);  
          
        for (Student student : ts) {  
            System.out.println(student.getId()+"-"+student.getName());  
        }  
		

  

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转载自www.cnblogs.com/lizishaoye/p/10748278.html