### 银行家算法简介
银行家算法是一种用于操作系统中资源分配和死锁避免的算法。它基于“银行家”类比，确
保在资源分配后系统不会进入死锁状态。主要步骤包括检查请求是否合法、模拟分配资源、
检查系统是否处于安全状态等。
### Java 实现
#### 1. 创建主类 `BankerAlgorithm.java`
```java
import java.util.Scanner;
public class BankerAlgorithm {
private int numberOfProcesses;
private int numberOfResources;
private int[] available;
private int[][] maximum;
private int[][] allocation;
private int[][] need;
public BankerAlgorithm(int numberOfProcesses, int numberOfResources) {
this.numberOfProcesses = numberOfProcesses;
this.numberOfResources = numberOfResources;
available = new int[numberOfResources];
maximum = new int[numberOfProcesses][numberOfResources];
allocation = new int[numberOfProcesses][numberOfResources];
need = new int[numberOfProcesses][numberOfResources];
}
public void setSystemResources(int[] available, int[][] maximum, int[][] allocation) {
this.available = available;
this.maximum = maximum;
this.allocation = allocation;
for (int i = 0; i < numberOfProcesses; i++) {
for (int j = 0; j < numberOfResources; j++) {
need[i][j] = maximum[i][j] - allocation[i][j];
}
}
}
public boolean requestResources(int processNumber, int[] request) {
// Check if request is valid
for (int i = 0; i < numberOfResources; i++) {
