Change ganache Owner Account in WEB3J from account[0] to account[1]or account[2]

Question

I'm looking for a way to change owner of the smart contracts in java web3j as we do in web3 javascript using from:

 getMetaskAccountID: function () {
        web3 = new Web3(App.web3Provider);

        // Retrieving accounts
        web3.eth.getAccounts(function(err, res) {
            if (err) {
                console.log('Error:',err);
                return;
            }

            App.metamaskAccountID = res[0];
            if (res.length > 1){
            document.getElementById("divType").innerText = "Ganache Address"
            console.log("Using Ganache");
            App.FirstID = res[1];
            document.getElementById("account1").value = App.account1;
            App.secondID = res[2];
            document.getElementById("account2").value = App.account2;
          }else{
            document.getElementById("divType").innerText = "Using MetaMask Address"
            App.account1 = document.getElementById("account1").value;
            App.account2 = document.getElementById("account2").value;
          }

        })
    }

//using account for transaction in javascript
await contract.function(param1, param2, {from: account1});
await contract.function(param1, param2, {from: account2});

I can't find any solution regarding this for java web3j to change account for transaction.

contract.function(param1, param2).sendAsync();

It uses default account[0] for all the transactions. I want to change the owner for various transctions.

Would be nice to get a suitable answer for web3j to change account, thanks.