Java 将容器List里面的内容保存到数组

import java.util.List;import java.util.ArrayList;public class listToArr {public static void main(String[] args) {List<Integer> list = new ArrayList<Integer>();list.add(...

柒弦宇轩

4490人浏览 · 2019-01-11 17:53:47

柒弦宇轩 · 2019-01-11 17:53:47 发布

import java.util.List;
import java.util.ArrayList;

public class listToArr {
	
	public static void main(String[] args) {
		
		List<Integer> list = new ArrayList<Integer>();
		list.add( 11 );
		list.add( 23 );
		list.add( 68 );
		System.out.println( "list=" + list.toString() );
		
		int count = 0;
		Integer intArr[] = new Integer[list.size()];
		for( int i = 0; i < list.size(); i++ ) {
			intArr[count] = list.get(i);
			count++;
		}
		
		for( int i = 0; i < intArr.length; i++ ) {
			System.out.print( "intArr[" + i + "]=" + intArr[i] + "  " );
		}
	}
		
}

运行结果为：