求数组最大和最小值

[unicodeTT]

String[] arr = {"40738 40134 40124 40113"}

请问用程序怎么算出他们的最大和最小值呢？？

[znnevergiveup]

姐们，你是个字符串数组，按什么比大小？

[znnevergiveup]

姐们，你这是个字符串数组，想按什么算大小？

[qybao]

//转成int类型比较
String[] arr = {"40738", "40134", "40124", "40113"};
int max = Integer.valueOf(arr[0]);
int min = max;
for (int i=1; i<arr.length; i++) {
    int tmp = Integer.valueOf(arr[i]);
    if (max < tmp) {
        max = tmp
    }
    if (min > tmp) {
        min = tmp;
    }
}
System.out.println("min=%d, max=%d\n", min, max);

//或者排序再输出
Arrays.sort(arr, new Comparator<String>() {
    public int compare(String s1, String s2) {
        return Ineger.valueOf(s1).compareTo(Integer.valueOf(s2));
    } 
});
System.out.println("min=%s, max=%s\n", arr[0], arr[arr.length-1]);

[ethanwalle]

String[] arr = {"40738","40134", "40124","40113"};
		
		String min = arr[0];
		String max = arr[0];
		for(int i = 0 ;i < arr.length;i++){
			if(min.compareTo(arr[i]) > 0){
				min = arr[i];
			}
			if(max.compareTo(arr[i]) < 0){
				max = arr[i];
			}
		}
		System.out.println("最大值: " + max + ",最小值: " + min);

[ashitawillbefine]

异常的没考虑

	public static void main(String[] args) throws IOException,
			InterruptedException {
		String[] array = new String[] { "250", "1054", "1058", "100", "100",
				"200", "300" };
		TreeSet<String> treeSet = new TreeSet<String>(new Comparator<String>() {
			@Override
			public int compare(String o1, String o2) {
				return Integer.parseInt(o1) > Integer.parseInt(o2) ? 1 : -1;
			}
		});
		treeSet.addAll(Arrays.asList(array));
		System.out.println(treeSet.first());
		System.out.println(treeSet.last());
	}

[绝世酱油瓶]

public static void main(String[] args) {
		String[] arr = { "40738 40134 40124 40113" };
		List list = new ArrayList();
		String[] a = arr[0].split(" ");
		for (String string : a) {
			list.add(string);
		}
		Collections.sort(list);
		System.out.println("min:" + list.get(0));
		System.out.println("max:" + list.get(list.size() - 1));
	}

[太阳峰]

5楼写的挺好的，4楼想的好复杂，学数学的吧！算法太熟练了，呵呵！都学习学习

[张自强]

写的好哇 ，呵呵 都写过 了 我就不写了

我的技术博客 http://www.happyalaric.com