所以除了一部分之外，这个程序运作得很好。当我把检查器放下时。比方说我将红色放入1，然后尝试将蓝色放入1，它应该叠加在红色的顶部，但它取而代之的是红色的红色。我将发布整个代码。一切都有帮助！
package com.company; import java.util.Scanner;
public class ConnectFour {
public static String[][] makeboard() {
String[][] CJ = new String[7][15];
for (int i = 0; i < CJ.length; i++) {
for (int c = 0; c < CJ[i].length; c++) {
if (c % 2 == 0)
CJ[i][c] = "|";
else CJ[i][c] = " ";
if (i == 6) CJ[i][c] = "-";
}
}
return CJ;
}
public static void printboard(String[][] CJ) {
for (int i = 0; i < CJ.length; i++) {
for (int c = 0; c < CJ[i].length; c++) {
System.out.print(CJ[i][c]);
}
System.out.println();
}
}
//此部分不起作用
public static void Red(String[][] CJ,String player1) {
System.out.println(player1+ " enter 0-6 to place checker");
Scanner scnr = new Scanner(System.in);
int g = (2 * (scnr.nextInt()) + 1);
for (int i = 5; i >= 0; i--) {
if (CJ[i][g] == " ") ;
{
CJ[i][g] = "R";
break;
}
}
}
//此部分不起作用
public static void Blue(String[][] CJ, String player2) {
System.out.println(player2 +" enter 0-6 to place checker");
Scanner scnr = new Scanner(System.in);
int g = (2 * (scnr.nextInt()) + 1);
for (int i = 5; i >= 0; i--) {
if (CJ[i][g] == " ") ;
{
CJ[i][g] = "B";
break;
}
}
}
//
public static String checkforWinner(String[][]CJ){
for( int i=0; i<6; i++){
for(int j=0; j<7; j++){
if ((CJ[i][j+1] != " ")
&& (CJ[i][j+3] != " ")
&& (CJ[i][j+5] != " ")
&& (CJ[i][j+7] != " ")
&& ((CJ[i][j+1] == CJ[i][j+3])
&& (CJ[i][j+3] == CJ[i][j+5])
&& (CJ[i][j+5] == CJ[i][j+7])))
return CJ[i][j+1];
}
}
for (int j=1; j<15; j+=2){
for (int i =0; i<3; i++){
if ((CJ[i][j] != " ")
&& (CJ[i+1][j] != " ")
&& (CJ[i+2][j] != " ")
&& (CJ[i+3][j] != " ")
&& ((CJ[i][j] == CJ[i+1][j])
&& (CJ[i+1][j] == CJ[i+2][j])
&& (CJ[i+2][j] == CJ[i+3][j])))
return CJ[i][j];
}
}
for (int i=0;i<3;i++){
for (int k=7; k<15; k+=2){
if ((CJ[i][k] != " ")
&&(CJ[i+1][k-2] != " ")
&&(CJ[i+2][k-4] != " ")
&&(CJ[i+3][k-6] != " ")
&&((CJ[i][k] == CJ[i+1][k-2])
&&(CJ[i+1][k-2]==CJ[i+2][k-4])
&&(CJ[i+2][k-4]==CJ[i+3][k-6])))
return CJ[i][k];
}
}
return null;
}
public static void main(String[] args){
Scanner scnr = new Scanner(System.in);
System.out.println("Player one enter your name.");
String player1= scnr.nextLine();
System.out.println("Player two enter your name.");
String player2 = scnr.nextLine();
System.out.println(player1 + " is Red and " + player2 + " is Blue");
String[][] CJ= makeboard();
boolean playing = true;
int count = 0;
printboard(CJ);
while(playing){
if(count %2==0) Red(CJ,player1);
else Blue(CJ,player2);
count++;
printboard(CJ);}
if (checkforWinner(CJ) != null){
if (checkforWinner(CJ) =="R")
System.out.println(player1 + " wins!");
else if (checkforWinner(CJ) == "B")
System.out.println(player2 + " wins!");
}
}
}