方法二:使用Collections工具类实现数组反转 publicvoidreverseArray(int[]arr){List<Integer>list=Arrays.stream(arr).boxed().collect(Collectors.toList());Collections.reverse(list);for(inti=0;i<arr.length;i++){arr[i]=list.get(i);}} 1. 2. 3. 4. 5. 6. 7. 上面的代码示例中,我们先将数组...
// Import the Arrays class from the java.util package.importjava.util.Arrays;// Define a class named Exercise11.publicclassExercise11{// The main method where the program execution starts.publicstaticvoidmain(String[]args){// Declare and initialize an integer array 'my_array1'.int[]my_array...
int型的数值范围是 -2147483648～2147483647, 那么如果我们要翻转 1000000009 这个在范围内的数得到 9000000001,而翻转后的数就超过了范围 Java解法: classSolution {publicintreverse(intx) {longresult = 0;while(x != 0){ result= result * 10 + x % 10; x= x / 10; }if(result > Integer.MAX_VALUE...
Reverse Integer (JAVA) Reverse digits of an integer. Example1:x = 123, return 321 Example2:x = -123, return -321 1publicclassSolution {2publicintreverse(intx) {3String str=x+"";4booleanisNeg=false;5if(str.charAt(0)=='-')6{7str=str.substring(1);8isNeg=true;9}1011//System.ou...
当考虑到溢出时(实际上,一个鲁棒性强的算法是不可能不考虑边界情况的),整型数n反转后的结果可能超出int类型所能表示最大范围,在Java中,int类型的包装类Integer定义了两个常量,MAX_VALUE(2147483647) 和MIN_VALUE(-2147483648),这两个常量指示了int型所能表示的数字范围,如果数字超过这个范围则不能正确的被...
1 Reversing an integer in Java using a for loop 0 Using Recursion to reverse an integer without the use of strings 0 Reverse an existing number 1 How to reverse a number without using a n array and also without using any library function? 0 How to reverse integers using while or ...
Java.Interop.Expressions Java.Interop.Tools.JavaCallableWrappers Java.IO Java.Lang Java.Lang AbstractMethodError AbstractStringBuilder ArithmeticException ArrayIndexOutOfBoundsException ArrayStoreException AssertionError 布尔 BootstrapMethodError Byte 字符 Character.Subset Character.UnicodeBlock Character.UnicodeScript Cha...
reverse嘛，就是把组成Integer的32个比特的顺序调个方向。假设是32个学生排队，原来是按学号1~32顺序...
read() f.close() # array@7687 (type=[B) image_key_base64 = bytes('svOEKGb5WD0ezmHE4FXCVQ==', encoding='utf8') # 图片解密key image_key = base64.decodebytes(image_key_base64) print(image_key) iv = base64.decodebytes(bytes('4B7eYzHTevzHvgVZfWVNIg==', encoding='utf8')) #...
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