Question

java drawstring输出字符数组时为什么成了数字，

还有我这个代码能不能帮忙改进一下，新手自学，请多关照
package com.life;

import java.applet.Applet;
import java.awt.Button;
import java.awt.Graphics;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Arrays;

public class PaiXv extends Applet implements ActionListener {
/**
*
*/
private static final long serialVersionUID = -5347316269588713361L;
String s;
int m;
Label prompt=new Label("请输入要查找的数");
Button go=new Button("确定");
TextField putin=new TextField(5);
Label state=new Label("待输入");
Label result=new Label("fdf ") ;
static char[] abc= {'a','b','c','e','f','g','s','d','g','l'};
public void init()
{
add (prompt);
add (go);
add (putin);
add(state);
add(result);
go.addActionListener(this);
putin.addActionListener(this);
}
public void paint(Graphics g)
{
for(int i=0;i<abc.length;i++)
{
g.drawString(Integer.toString(abc[i]),10+30*i,70);
}
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==putin)
{
s=putin.getText();

state.setText("已输入");
}
if(e.getActionCommand()=="确定")
{
Arrays.sort(abc);
char n[]=s.toCharArray();
m=Arrays.binarySearch(abc,n[0]) ;
int y=m+1;
System.out.println(y);
result.setText ("要查找的数据在第"+y+"个位置");
}

}
public static void main(String args[])
{

}

}

Answer 1

import java.applet.Applet;
import java.awt.Button;
import java.awt.Graphics;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class PaiXv extends Applet implements ActionListener
{
	private static final long serialVersionUID = 1L;

	String s;

	int m;

	Label prompt = new Label("请输入要查找的数");

	Button go = new Button("确定");

	TextField putin = new TextField(5);

	String result = "";

	String abc = "abcefgsdgl";
	
	public void init()
	{
		add(prompt);
		add(go);
		add(putin);
		go.addActionListener(this);
		putin.addActionListener(this);
	}

	public void paint(Graphics g)
	{
		super.paint(g);
		g.drawString(abc, 10, 70);
		g.drawString(result, 10, 90);
		g.dispose();
	}

	public void actionPerformed(ActionEvent e)
	{
		Object source = e.getSource();
		if(source == go)
		{
			result = "要查找的数据在第" + abc.indexOf(putin.getText()) + "个位置";
			repaint();
		}
	}
}

Answer 2

g.drawString(String.valueOf(abc[i]),10+30*i,70);

Answer 3

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