?? scale.java
字號:
package try1;
public abstract class Scale {
private String scaleDescription;
private String type;
private static long currentID = 0;
private static synchronized long getNextID() {
Scale.currentID++;
return Scale.currentID;
}
protected long id;
public Scale() {
id = getNextID();
}
public long getId() {
return this.id;
}
public abstract void doCalculate();
public String getScaleDescription() {
return scaleDescription;
}
public void setScaleDescription(String scaleDescription) {
this.scaleDescription = scaleDescription;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
}
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