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list实例应用

Java代码如下:

package Test01;import java.util.ArrayList;import java.util.List;public class Test02 {		public static void main(String[] args){		a();		b();		c();	}		@SuppressWarnings("unchecked")	public static void a(){		@SuppressWarnings("rawtypes")		List list = new ArrayList();		int sum = 0;		for (int i = 0; i < 10; i++) {			sum = sum+i;		}		System.out.println(sum);		list.add(sum);		System.out.println(list);	}		@SuppressWarnings("unchecked")	public static void b(){		@SuppressWarnings("rawtypes")		List list = new ArrayList();		for (int i = 0; i < 10; i++) {			list.add(i);		}		System.out.println(list);	}		@SuppressWarnings("unchecked")	public static void c(){		@SuppressWarnings("rawtypes")		List list = new ArrayList();		for (int i = 10; i > 0; i--) {			list.add(i);		}		System.out.println(list);	}}

 

运行结果如下: