how to convert ascii value of 49 to actual char in java我的代碼在下面，我正在嘗試存儲不是以前綴a或g開頭的列表中的元素 void display(){ String[] inpArray={"apple","orange","grapes"}; LinkedList<String> listOne = new LinkedList<String>(Arrays.asList(inpArray)); LinkedList<String> listTwo = new LinkedList<String>(); listTwo.add("melon"); listTwo.add("apple"); listTwo.add("mango"); String[] result1 = {}; for(String res : listOne){ if(res.startsWith("a")||res.startsWith("g")){ System.out.println("--> "+res); }else{ System.out.println("** "+res); //result1 = res;//unable to store in string array or to list // here i have to add all strings how to do that please help me }
2 回答
元芳怎么了
TA貢獻(xiàn)1798條經(jīng)驗 獲得超7個贊
如果要將元素存儲到數(shù)組中，可以List先將其放入List數(shù)組中，然后通過List.toArray以下方式將其轉(zhuǎn)換為數(shù)組：
LinkedList<String> linkedList = new LinkedList<>();
for (String res : listOne) {
if (res.startsWith("a") || res.startsWith("g")) {
System.out.println("--> " + res);
} else {
System.out.println("** " + res);
linkedList.add(res);
}
}
String[] result1 = new String[linkedList.size()];
linkedList.toArray(result1);
米脂
TA貢獻(xiàn)1836條經(jīng)驗 獲得超3個贊
Please find the code for storing the element in String array using index i;
package com.test.stackoverflow;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class TestClass {
public static void main(String[] args) {
// TODO Auto-generated method stub
display();
}
public static void display() {
String[] inpArray = { "apple", "orange", "grapes" };
List<String> listOne = new ArrayList<String>(Arrays.asList(inpArray));
List<String> listTwo = new ArrayList<String>();
listTwo.add("melon");
listTwo.add("apple");
listTwo.add("mango");
String[] result1 = new String[listOne.size()];
int i =0;
for (String res : listOne) {
if (res.startsWith("a") || res.startsWith("g")) {
System.out.println("--> " + res);
} else {
System.out.println("** " + res);
result1[i++] = res;
}
}
for(String val : result1){
System.out.println("Value"+val);
}
}
}
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