import java.util.Random;
class perro{
private Float animo;
private Float umbral;
Random rand = new Random();
public perro(){
animo = rand.nextFloat() * (5+5)-5;
umbral = rand.nextFloat() * (0-20);
}
public Float getAnimo(){
return animo;
}
public Float getUmbral(){
return umbral;
}
private void psican(persona p){
this.animo = (rand.nextFloat() -0.5) * 10 + this.animo;
if (p.tieneGalleta()){
p.darGalleta();
this.animo += (1.0 / p.getConfiabilidad()) * (rand.nextInt(2));
}
System.out.println("Mi nuevo animo es: " + this.animo);
}
我收到此错误:
"error: incompatible types: double cannot be converted to Float
this.animo = (rand.nextFloat() -0.5) * 10 + this.animo;"
我检查了所有内容,但从一开始就将其声明为浮点数。
答案 0 :(得分:5)
因为0.5
是double
(而不是float
)。更改
this.animo = (rand.nextFloat() -0.5) * 10 + this.animo;
到
this.animo = (rand.nextFloat() -0.5f) * 10 + this.animo;
或
this.animo += (rand.nextFloat() - 0.5f) * 10;