how to start and stop other java applicaton

[Jhovarie]

hello guys i wonder how to do this.

public class startotherclass {
public static void main(String[]args){
// I need code to start classtostart.java
}
}


public class classtostart {
public static void main(String[]args){
while(true){
//Chek file if change
}
}
}

public class stopclasstostart {
public static void main(String[]args){
//I need code to stop classtostart.java
}
}

i need this code so that i can protect my file even i close my main application in java.

i must start classtostart.java so that it will protect my file even i close my main project please help.

[j2me64]

in the api of the class Thread all methods needed to start, stop etc. are well exaplained. please, read the api and if you have questions about it post it here