在Java中，要初始化一个新对象并将另一个对象作为参数传递给该新对象，可以使用拷贝构造函数或者使用对象的clone()方法来实现。下面是两种方法的示例代码：

1. 使用拷贝构造函数：

public class MyObject {
    private int value;
    
    public MyObject(int value) {
        this.value = value;
    }
    
    // 拷贝构造函数
    public MyObject(MyObject other) {
        this.value = other.value;
    }
    
    // getter和setter方法
    public int getValue() {
        return value;
    }
    
    public void setValue(int value) {
        this.value = value;
    }
}

public class Main {
    public static void main(String[] args) {
        MyObject originalObject = new MyObject(10);
        MyObject newObject = new MyObject(originalObject); // 使用拷贝构造函数初始化新对象
        
        System.out.println("Original object value: " + originalObject.getValue());
        System.out.println("New object value: " + newObject.getValue());
        
        originalObject.setValue(20); // 修改原始对象的值
        
        System.out.println("Original object value after modification: " + originalObject.getValue());
        System.out.println("New object value after modification: " + newObject.getValue()); // 新对象的值不受影响
    }
}

输出结果：

Original object value: 10
New object value: 10
Original object value after modification: 20
New object value after modification: 10

2. 使用clone()方法：

public class MyObject implements Cloneable {
    private int value;
    
    public MyObject(int value) {
        this.value = value;
    }
    
    // getter和setter方法
    public int getValue() {
        return value;
    }
    
    public void setValue(int value) {
        this.value = value;
    }
    
    // 重写clone()方法
    @Override
    public MyObject clone() throws CloneNotSupportedException {
        return (MyObject) super.clone();
    }
}

public class Main {
    public static void main(String[] args) {
        MyObject originalObject = new MyObject(10);
        MyObject newObject = null;
        
        try {
            newObject = originalObject.clone(); // 使用clone()方法初始化新对象
        } catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        
        System.out.println("Original object value: " + originalObject.getValue());
        System.out.println("New object value: " + newObject.getValue());
        
        originalObject.setValue(20); // 修改原始对象的值
        
        System.out.println("Original object value after modification: " + originalObject.getValue());
        System.out.println("New object value after modification: " + newObject.getValue()); // 新对象的值不受影响
    }
}

输出结果：

Original object value: 10
New object value: 10
Original object value after modification: 20
New object value after modification: 10