如何将字符串数组绘制到 Java 小程序中

Question

在

Java方面，我是业余爱好者，我正在尝试创建一个小程序，将序列"Black Screen British Guy"随机化为不同的序列。

我已经得到了要打印到控制台的序列，但是我正在尝试将字符串打印到 java 小程序中，我遇到了麻烦，我可以使用一些帮助。谢谢。

 package bsbg_gen;
import java.lang.String;
import java.io.*;
import java.util.Arrays;
import java.util.Random;
import java.applet.*;
import java.awt.Graphics;
public class main extends Applet {
        public void init(){
             String[] bsbg;
             String[] bsbg2;
             String[] bsbg3;
             String[] bsbg4;
             String [][] name = {{"Black"}, {"Screen"}, {"British"}, {"Guy"}};
             String [][] name2 = {{"Black"}, {"Screen"}, {"British"}, {"Guy"}};
             String [][] name3 = {{"Black"}, {"Screen"}, {"British"}, {"Guy"}};
             String [][] name4 = {{"Black"}, {"Screen"}, {"British"}, {"Guy"}};
             Random rand = new Random();
             bsbg = name [rand.nextInt(name.length)];
             bsbg2 = name2 [rand.nextInt(name2.length)];
             bsbg3 = name3 [rand.nextInt(name3.length)];
             bsbg4 = name4 [rand.nextInt(name4.length)];

             System.out.print(Arrays.toString(bsbg));
             System.out.print(Arrays.toString(bsbg2));
             System.out.print(Arrays.toString(bsbg3));
             System.out.print(Arrays.toString(bsbg4));
        }
        public void stop(){
        }
        public void paint(Graphics g){
            g.drawString((Arrays.toString(bsbg)), 150, 50);
            g.drawString((Arrays.toString(bsbg2)), 150, 50);
            g.drawString((Arrays.toString(bsbg3)), 175, 50);
            g.drawString((Arrays.toString(bsbg4)), 200, 50);
        }
}

Answer 1

您需要将这些声明为类成员。它们目前不在paint方法的范围内。它们在init方法中进行了本地化。把它们拿出来。

String[] bsbg;
String[] bsbg2;
String[] bsbg3;
String[] bsbg4;

在外面声明它们

String[] bsbg;
String[] bsbg2;
String[] bsbg3;
String[] bsbg4;
public void init(){