Question

java的一道题目

输入字符串“they are student”输出“student are they”，要怎么做呢？

Answer 1

按空格拆成数组,反序输出不就完了

追问

其实我想到假设是a b c这样的形式就好办，我就是不知道怎么把那个单词变成一个数组的元素，你能写个代码吗？

追答

有人已经替我回答了....

Answer 2

import javax.swing.JOptionPane;public class ReverseString {

public static void main (String args[]){
String originalString;
String resultString = "";

originalString = JOptionPane.showInputDialog("Please input a String: ");

char[] charArray = originalString.toCharArray();

for (int i=charArray.length-1; i>=0; i--){
resultString += charArray[i];
}

JOptionPane.showMessageDialog(null, resultString, "Reverse String", JOptionPane.INFORMATION_MESSAGE);
}
}

import javax.swing.JOptionPane;
public class ReverseString {
public static void reverseString (String str){
if (str.length() == 1){
System.out.print(str);
}
else{
String subString1 = str.substring(0, str.length()-1);
String subString2 = str.substring(str.length()-1);

System.out.print(subString2);

reverseString (subString1);
}
}

public static void main (String args[]){
String originalString;

originalString = JOptionPane.showInputDialog("Please input a String: ");

reverseString (originalString);
}
}

public class ReverseString {
public static void reverseString (String str){
StringBuffer stringBuffer = new StringBuffer (str);

System.out.print(stringBuffer.reverse());
}

public static void main (String args[]){
String originalString;

originalString = JOptionPane.showInputDialog("Please input a String: ");

reverseString (originalString);
}
}

Answer 3

public static void main(String[] args) {
String ceshi="they are student";
String[] tas = ceshi.split(" ");
String result=tas[2]+" "+tas[1]+" "+tas[0];
System.out.println(result);

}
不知道是不是你想要的

Answer 4

public static void main(String[] args) {
		String str="they are student";
		String[] st=str.split(" ");
		for (int i = st.length-1; i >= 0; i--) {
			System.out.print(st[i]+" ");
		}
	}