应用分支结构if...else....

public class SalJust {

public static void main(String[] args) {
DataDeal data= new DataDeal(2000);
data.dataDeal();
data.setSal(12000);
data.dataDeal();

}

}
public class DataDeal {
int sal;
public DataDeal(int sal) {
super();
this.sal = sal;
}
public void setSal(int sal) {
this.sal = sal;
}

void dataDeal(){
if(sal>=10000)
System.out.println("不给予生活补助。");
else if(sal>=3000)
System.out.println("给予500元的生活补助。");
else if(sal>=2000)
System.out.println("给予600元生活补助。");
else if(sal<2000)
System.out.println("给予800元生活补助。");
}
}