andoid stk button on clik' code example

Example 1: onclicklistener in android studio

Name.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(MainActivity.this,FileName.class));
            }
        });

Example 2: android onlcik java

Button button = (Button) findViewById(R.id.button_send);
button.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        // Do something in response to button click
    }
});
//https://developer.android.com/guide/topics/ui/controls/button