Интерполяция строковой переменной Java ⇐ JAVA

[Anonymous]

String building in Java confounds me. I abhore doing things like:

url += "u1=" + u1 + ";u2=" + u2 + ";u3=" + u3 + ";u4=" + u4 + ";"; url += "x=" + u1 + ";y=" + u2 + ";z=" + u3 + ";da1=" + u4 + ";"; url += "qty=1;cost=" + orderTotal + ";ord=" + orderId + "?"; Or, using StringBuilder, something like this:

url.append("u1="); url.append(u1); url.append(";u2="); url.append(u2); url.append(";u3="); url.append(u3); url.append(";u4="); url.append(u4); url.append(";"); url.append("x="); url.append(u1); url.append(";y="); url.append(u2); url.append(";z="); url.append(u3); url.append(";da1="); url.append(u4); url.append(";"); url.append("qty=1;"); url.append("cost="); url.append(orderTotal); url.append(";ord="); url.append(orderId); url.append("?"); SURELY I'm missing something. There has GOT to be a better way. Something like:

Instead of:

urlString += "u1=" + u1 + ";u2=" + u2 + ";u3=" + u3 + ";u4=" + u4 + ";"; do:

urlString += Interpolator("u1=%s;u2=%s;u3=%s;u4=%s;", u1, u2, u3, u4); or:
urlStringBuilder.append(Interpolator("u1=%s;u2=%s;u3=%s;u4=%s;", u1, u2, u3, u4));

Источник: https://stackoverflow.com/questions/638 ... ation-java