Is there a script/program that automatically changes variable names in a code to random strings? [closed]

For example: I have a code snippet like

int numOfTrees = 3;
string name = "Jon"
float grade = 3.23;

numOfTrees++;
grade -= 0.4;

Is there a script that automatically changes it to some random generated string? For exmaple

int h7tzg46amt = 3;
string ka81nfhats = "Jon"
float ma8ghr4bs7 = 3.23;

h7tzg46amt++;
ma8ghr4bs7 -= 0.4;