java小白，想解决问题

mlw1008611 发表于 2022-9-25 11:27

public class kun {
public class CPU{
   int getSpeed(){
         return speed;
   }
   int speed;
   void setSpeed(int m){
         speed=m;
   }
}
public class HardDisk{
   int getAmount(){
         return amount;
   }
   int amount;
   void setAmount(int a){
         amount=a;
   }
}
public class PC{
   CPU cpu;
   void setCpu(CPU c){
         cpu=c;
   }
   public void show() {
   }
}
public static void setHardDisk(HardDisk h){
}
void show(String sudu,String rongliang){
   System.out.println(sudu+rongliang);
}
/**
* @Param args
*/
public static void main(String[] args){
   CPUcpu=new CPU();
   cpu.setSpeed(2200);
   HardDisk disk=new HardDisk();
   disk.setAmount(200);
   PC pc=new PC();
   pc.setCPU(CPU c)=cpu;
   pc.setHarDisk(HardDisk h)=disk;
   pc.show();
}
}

https://s2.232232.xyz/static/4/2022/09/25-632fcaafaeec6.png

这个报错不会解决啊，请大佬指点一下

big冰 发表于 2022-9-25 11:43

本帖最后由 big冰于 2022-9-25 11:47 编辑

pc.setCPU(cpu);
setHarDisk(disk);

elonlo 发表于 2022-9-25 11:43

set属性的时候错了，应该是这样：
pc.setCPU(pc);
pc.setHarDisk(disk);

主骑士 发表于 2022-9-25 11:56

pc.setCPU(CPU c);
就可以了，不需要加等于号

namedlxd 发表于 2022-9-25 11:56

public class kun {
public static class CPU {
   int getSpeed() {
         return speed;
   }

   int speed;

   void setSpeed(int m) {
         speed = m;
   }
}

public static class HardDisk {
   int getAmount() {
         return amount;
   }

   int amount;

   void setAmount(int a) {
         amount = a;
   }
}

public static class PC {
   CPU cpu;
   HardDisk disk;

   void setCpu(CPU c) {
         cpu = c;
   }

   public void show() {
   }

   void setHarDisk(HardDisk disk) {
         this.disk = disk;
   }
}

public static void setHardDisk(HardDisk h) {
}

void show(String sudu, String rongliang) {
   System.out.println(sudu + rongliang);
}

/**
* @Param args
*/
public static void main(String[] args) {
   CPU cpu = new CPU();
   cpu.setSpeed(2200);
   HardDisk disk = new HardDisk();
   disk.setAmount(200);
   PC pc = new PC();
   pc.setCpu(cpu);
   pc.setHarDisk(disk);
   pc.show();
}
}

grekevin 发表于 2022-9-25 12:00

class CPU{
int getSpeed(){
   return speed;
}
int speed;
void setSpeed(int m){
   speed=m;
}
}

class HardDisk{
int getAmount(){
   return amount;
}
int amount;
void setAmount(int a){
   amount=a;
}
}

public class PC{
CPU cpu;
HardDisk harddisk;
void setCpu(CPU c){
   cpu=c;
}

void setHardDisk(HardDisk h){
harddisk = h;
}
void show(){
   System.out.println("CPU speed:" + cpu.speed + "\nharddisk amount:" + harddisk.amount);
}

public static void main(String[] args){
   CPU cpu=new CPU();
   cpu.setSpeed(2200);
   HardDisk disk=new HardDisk();
   disk.setAmount(200);
   PC pc=new PC();
   pc.setCpu(cpu);
   pc.setHardDisk(disk);
   pc.show();
}
}

小豪威武 发表于 2022-9-25 12:45

pc.setCPU(CPU c)=cpu;
pc.setHarDisk(HardDisk h)=disk;
改:
pc.setCPU(c);
pc.setHarDisk(h);

mlw1008611 发表于 2022-9-25 13:23

big冰发表于 2022-9-25 11:43
pc.setCPU(cpu);
setHarDisk(disk);

谢谢大佬，已经解决了

mlw1008611 发表于 2022-9-25 13:25

elonlo 发表于 2022-9-25 11:43
set属性的时候错了，应该是这样：
pc.setCPU(pc);
pc.setHarDisk(disk);

谢谢大佬，已经解决了

mlw1008611 发表于 2022-9-25 13:26

主骑士发表于 2022-9-25 11:56
pc.setCPU(CPU c);
就可以了，不需要加等于号

谢谢大佬，已经解决了

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java小白，想解决问题