不打印相同的输出

Question

只是不打印与上面的行相同的输出，我无法弄清楚为什么发生这种情况，我注意到它从最后打印最后N个数字，无论我输入什么它会再次打印该参数。

这里的主要

public class main { 
    public static void main(String args[]) { 
    ScalesSolution s1 = new ScalesSolution(11); 
    s1.println(); 
    ScalesSolution s2 = new ScalesSolution(s1.GetSol()); 
    s2.println(); 
} 
} 

继承人的ScalesSolution类

import java.util.ArrayList; 
import java.util.Random; 

public class ScalesSolution { 
private String scasol; 

public void print() { 
    System.out.print(scasol); 
} 

// Display the string with a new line 
public void println() { 
    print(); 
    System.out.println(); 
} 



public String GetSol() 
{ 
    return scasol; 
} 
} 

继承人的randomOther类

import java.util.*; 
import java.io.*; 

public class randomOther { 
// Shared random object 
static private Random rand; 

// Create a uniformly distributed random integer between aa and bb inclusive 
static public int UI(int aa, int bb) { 
    int a = Math.min(aa, bb); 
    int b = Math.max(aa, bb); 
    if (rand == null) { 
     rand = new Random(); 
     rand.setSeed(System.nanoTime()); 
    } 
    int d = b - a + 1; 
    int x = rand.nextInt(d) + a; 
    return (x); 
} 

// Create a uniformly distributed random double between a and b inclusive 
static public double UR(double a, double b) { 
    if (rand == null) { 
     rand = new Random(); 
     rand.setSeed(System.nanoTime()); 
    } 
    return ((b - a) * rand.nextDouble() + a); 
} 
static public ArrayList<Double> ReadNumberFile(String filename) { 
    ArrayList<Double> res = new ArrayList<Double>(); 
    Reader r; 
    try { 
     r = new BufferedReader(new FileReader(filename)); 
     StreamTokenizer stok = new StreamTokenizer(r); 
     stok.parseNumbers(); 
     stok.nextToken(); 
     while (stok.ttype != StreamTokenizer.TT_EOF) { 
      if (stok.ttype == StreamTokenizer.TT_NUMBER) { 
       res.add(stok.nval); 
      } 
      stok.nextToken(); 
     } 
    } catch (Exception E) { 
     System.out.println("+++ReadFile: " + E.getMessage()); 
    } 
    return (res); 
} 
} 

这里是问题的输出：

00101001010101101011001011010101101001011010001011010010101101001001011010010 
01011010010 

我相信，两个输出应该是相同的，我看到有一个问题就在这里，不知道为什么他们不

Answer 1

我看到你正在使用System.out.print您RandomBinaryString(int n)内的方式造成混乱。它正在打印并追加到字符串s。尽量避免这种情况。更换System.out.print(s += '0');和System.out.print(s += '1');与s += '0';和s += '1';在RandomBinaryString将修复您的输出。

在代码中使用的片段如下：

private static String RandomBinaryString(int n) { 
    String s = new String(); 

    // Code goes here 
    // Create a random binary string of just ones and zeros of length n 
    for (int i = 0; i < n; i++) { 
     int y = randomOther.UI(0, 1); 
     if (y == 0) { 
      s += '0';// this line here was changed 
     } else { 
      s += '1';// and this line here was changed too 
     } 
    } 

    return (s); 
} 

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希望这有助于！