Student(int num, String name){ this.num = num; = name; } } 编译结果: Exception in thread "main" java.lang.ClassCastException: Student cannot be cast to java.lang.Comparable at java.util.Arrays.mergeSort(Arrays.java:
public class Main{ public static int findArrayIndex(String[] arr, String str) { int iReturn = -1; for (int i = 0; i < arr.length; i++) { if (arr[i].equals(str)) { iReturn = i;//from w ww.j a va2s.c o m break; } } return iReturn; } } ...
在这个问答内容中,你使用了find和string,但是没有具体说明你在使用这两个函数时出现了什么问题。因此,我无法给出具体的答案。请提供更多细节,例如你的代码、错误信息或期望的结果,以便我能够帮助你找出问题所在并给出解决方案。 相关搜索: range()和in_array()行为,我在这里做错了什么? 我在这里做错了什么?While...
import java.util.ArrayList; public class Main { public static void main(String[] args) { ArrayList objArray = new ArrayList(); ArrayList objArray2 = new ArrayList(); objArray2.add(0,"common1"); objArray2.add(1,"common2"); objArray2.add(2,"notcommon"); objArray2.add(3,"notcommo...
h:257 0x0804a8d9 in std::string::find (this=0xbfb54a10, __s=0x804b8f2 "2", __pos=4294967295) at /usr/include/c++/4.1.2/bits/basic_string.h:1579 1579 return this->find(__s, __pos, traits_type::length(__s)); Value returned is $1 = 1 (gdb) s std::string::find (...
import java.util.*; // Define a class named Exercise24. public class Exercise24 { // The main method for executing the program. public static void main(String[] args) { // Declare variables for total number and an array of integers. int total_num; int[] numbers = new int[]{1, 2...
importjava.util.Scanner; publicclassFinder { publicstaticvoidmain(Stringargs[]) { intlrg,size,i; intnumArr[]=newint[50]; Scannerscan=newScanner(System.in); System.out.print("Enter Array Size : "); size=scan.nextInt(); System.out.print("Enter Array Elements : "); ...
JAVA的find方法findjava linux中的find命令:find文件路径 -name 要查找的文件名字1 String xml = tmp+".xml"; 2 String[] command = {"find","/media/data/xml","-name", xml}; 3 Process p = Runtime.getRunti JAVA的find方法 xml find命令 ...
Java Code: importjava.util.*;publicclassMain{publicstaticvoidmain(String[]args){// Create an array of integersint[]nums={1,2,4,5,6};inttarget=5;// target = 0;// target = 7;// Call the searchInsert function and print the resultSystem.out.print(searchInsert(nums,target));}publicsta...
第一个符合条件的数组元素的位置,如果所有元素都不符合条件则返回-1;findIndex(),数组中的每一个元素都会调用一次函数,但是当条件返回true时,findIndex(...的inArray方法 该方法返回元素在数组中的下标,如果不存在与数组中,那么返回-1; var arr=['aaa','bbb','ccc','ddd','eee']; var a= $.in...