[Java] Java对类私有变量的暴力反射技术讲解

package com.howlaa.day04;
public class reflectpoint {
 private int privar;
 public reflectpoint(int privar){
 this.privar =privar; 
} 
}

package com.howlaa.day04;
import java.lang.reflect.field;
public class reflecttest {
 public static void main(string[] args) throws exception {
 reflectpoint pt1 = new reflectpoint(3);
 field fieldx = pt1.getclass().getdeclaredfield("privar");
 fieldx.setaccessible(true);
 fieldx.set(pt1, 100);
 system.out.println(fieldx.get(pt1));
 }
}

输出：100；