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You can use

Object o = Class.forName(type).newInstance();

If you have an int and two Strings as arguments you need.

Object o = Class.forName(type)
                .getConstructor(int.class, String.class, String.class)
                .newInstance(intValue, string1, string2);

Another possibility is to use factory methods

Object o = getClass().getMethod("create_" + type).invoke(null);

static Object1 create_object1() {
     return new Object1(/* with args */);
}

static Object2 create_object2() {
     return new Object2(/* with other args */);
}

but the most flexible approach may be to use a switch

Object o;
switch(type) { // in Java 7
    case "object1": o = new Object1(); break;
    case "object2": o = new Object2(); break;

What would be more elegant is using closures in Java 8.

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-state-4.html

You can use

Object o = Class.forName(type).newInstance();

If you have an int and two Strings as arguments you need.

Object o = Class.forName(type)
                .getConstructor(int.class, String.class, String.class)
                .newInstance(intValue, string1, string2);

Another possibility is to use factory methods

Object o = getClass().getMethod("create_" + type).invoke(null);

static Object1 create_object1() {
     return new Object1(/* with args */);
}

static Object2 create_object2() {
     return new Object2(/* with other args */);
}

but the most flexible approach may be to use a switch

Object o;
switch(type) { // in Java 7
    case "object1": o = new Object1(); break;
    case "object2": o = new Object2(); break;

What would be more elegant is using closures in Java 8.

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-state-final.html

You can use

Object o = Class.forName(type).newInstance();

Another possibility is to use factory methods

Object o = getClass().getMethod("create_" + type).invoke(null);

static Object1 create_object1() {
     return new Object1(/* with args */);
}

static Object2 create_object2() {
     return new Object2(/* with other args */);
}

but the most flexible approach may be to use a switch

Object o;
switch(type) { // in Java 7
    case "object1": o = new Object1(); break;
    case "object2": o = new Object2(); break;

What would be more elegant is using closures in Java 8.

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-state-4.html

You can use

Object o = Class.forName(type).newInstance();

If you have an int and two Strings as arguments you need.

Object o = Class.forName(type)
                .getConstructor(int.class, String.class, String.class)
                .newInstance(intValue, string1, string2);

Another possibility is to use factory methods

Object o = getClass().getMethod("create_" + type).invoke(null);

static Object1 create_object1() {
     return new Object1(/* with args */);
}

static Object2 create_object2() {
     return new Object2(/* with other args */);
}

but the most flexible approach may be to use a switch

Object o;
switch(type) { // in Java 7
    case "object1": o = new Object1(); break;
    case "object2": o = new Object2(); break;

What would be more elegant is using closures in Java 8.

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-state-4.html

You can use

Object o = Class.forName(type).newInstance();

but the most flexible approach may be to use a switch

Object o;
switch(type) { // in Java 7
    case "object1": o = new Object1(); break;
    case "object2": o = new Object2(); break;

What would be more elegant is using closures in Java 8.

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-state-4.html

You can use

Object o = Class.forName(type).newInstance();

Another possibility is to use factory methods

Object o = getClass().getMethod("create_" + type).invoke(null);

static Object1 create_object1() {
     return new Object1(/* with args */);
}

static Object2 create_object2() {
     return new Object2(/* with other args */);
}

but the most flexible approach may be to use a switch

Object o;
switch(type) { // in Java 7
    case "object1": o = new Object1(); break;
    case "object2": o = new Object2(); break;

What would be more elegant is using closures in Java 8.

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-state-4.html