Question

我在Java中这样做。

我在编译时遇到问题。

它表示 .class预期

有什么不对的请纠正我，我是Java新手

import java.io.*;
import java.math.*;
class name {
public static void convertToArray(String pin){
    StringBuilder sB = new StringBuilder();
    sB.append(pin);
    String toConvert = sB.toString();
    int [] splittedValue = new int [toConvert.length()];
    for(int i = 0; i < toConvert.length(); i++){
          splittedValue[i] = Character.getNumericValue(pin.charAt(i));
    }
    return splittedValue[]; 
}
public static void Print(int n) {
    System.out.println(n);
}
public static void main(String args[])throws IOException {
    InputStreamReader ir = new InputStreamReader(System.in);
    BufferedReader br = new BufferedReader(ir);
    int pin1[], i = 0;String Name1, Name2, Name3;
    String Pin;
    String Names[][] ={ {"Mr.","Mrs.","Miss.","Dr.","Sir","Late","Professor","Gadha","Master","Teacher"},{"Abhigyan","Akashdeep","Anish","Adarsh","Ashutosh","","Anik","Shivam","",""},{"Saha","Mukkherjee","Pandey","Shaw","Bannerjee","Dey","Gupta","Singh","",""} };        
    System.out.println("Enter your 3 digit code name :");
    Pin=br.readLine();
    convertToArray(Pin);
    Name1=Names[0][pinExtracted[0]]; Name2=Names[1][pinExtracted[1]]; Name3=Names[2][pinExtracted[2]];
    System.out.println(Name1+" "+Name2+" "+Name3);
}
}

Answer 1

我认为你的输出只会是正确的。

import java.io.*;
import java.math.*;
public class name {
public static void convertToArray(String pin){
    StringBuilder sB = new StringBuilder();
    sB.append(pin);
    String toConvert = sB.toString();
    int [] splittedValue = new int [toConvert.length()];
    for(int i = 0; i < toConvert.length(); i++){
          splittedValue[i] = Character.getNumericValue(pin.charAt(i));
    }
   // return splittedValue[]; 
}
public static void Print(int n) {
    System.out.println(n);
}
public static void main(String args[])throws IOException {
    InputStreamReader ir = new InputStreamReader(System.in);
    BufferedReader br = new BufferedReader(ir);
    String Name1, Name2, Name3;
    String Pin;
    String Names[][] ={ {"Mr.","Mrs.","Miss.","Dr.","Sir","Late","Professor","Gadha","Master","Teacher"},{"Abhigyan","Akashdeep","Anish","Adarsh","Ashutosh","","Anik","Shivam","",""},{"Saha","Mukkherjee","Pandey","Shaw","Bannerjee","Dey","Gupta","Singh","",""} };        
    System.out.println("Enter your 3 digit code name :");
    Pin=br.readLine();
    convertToArray(Pin);
    Name1=Names[0][0]; Name2=Names[1][1]; Name3=Names[2][2];
    System.out.println(Name1+" "+Name2+" "+Name3);
}
}

<强>输出：

输入您的3位数代码：

012

先生。 Akashdeep Pandey

Answer 2

错误 .class预期是由

引起的

return splittedValue[];

只有在声明数组变量时才必须使用[]，因此请将其更改为

return splittedValue;

请注意，您的convertToArray方法应该有签名

public static int[] convertToArray(String pin){

主方法中有更多错误，您不要声明变量pinExtracted因此写

int[] pinExtracted = convertToArray(Pin);

编译错误＆＃34; .class预期＆＃34;

2 个答案: