MainActivity

  btnWriteMarksPage.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
if(idd.dontcomehereAgain==0){
Intent i=new Intent(MainActivity.this,askGs.class);
startActivity(i);
}else if(idd.dontcomehereAgain==1){
                    Intent i = new Intent(MainActivity.this,WriteMarksActivity.class);
                    Toast.makeText(MainActivity.this, "write", Toast.LENGTH_SHORT).show();
                    startActivity(i);
                }

            }
        });

2nd activity

     btnNext.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
        if (idd.whichType==1){
            Intent ii = new Intent(askGs.this,simpleGs.class);
            startActivity(ii);
        }else if(idd.whichType==2){
            Intent ii = new Intent(askGs.this,otherGr.class);
            startActivity(ii);
    idd.setDontcomehereAgain(1);
                    Toast.makeText(askGs.this,"6"+String.valueOf(idd.dontcomehereAgain),Toast.LENGTH_LONG).show();
        }
        
                    }
                });

i wish when the 2nd if statement is executed methood idd.setDontcomehereAgain(0) will turn to idd.setDontcomehereAgain(1), then the 2nd activity will not appear anymore when i click btnWriteMarksPage on the main page. But it seem the methood idd.setDontcomehereAgain(1)reset to 0 again when i restart the app . how do i make the variable stay the same without going to initial value after reopen of app?