javelit/examples/NumberInputExample.java at main · langgraph4j/javelit · GitHub

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/// usr/bin/env jbang "$0" "$@" ; exit $?
//DEPS io.javelit:javelit:0.76.0

import io.javelit.core.Jt;

public class NumberInputExample {
  public static void main(String[] args) {
    Jt.title("Number Input Component Test").use();
    //

    // Integer input with range
    Number age = Jt.numberInput("Age")
                   .minValue(0L)
                   .maxValue(120L)
                   .help("Enter your age in years")
                   .use();

    Jt.text("Your age: " + age + " (type: " + (age != null ? age.getClass().getSimpleName() : "null") + ")").use();

    // Float input with step and formatting
    Number price = Jt.numberInput("Price")
                     .minValue(0.0)
                     .step(0.01)
                     .value(9.99)
                     .format("%.2f")
                     .placeholder("Enter price...")
                     .icon("💰")
                     .use();

    Jt.text("Price: $" + price + " (type: " + (price != null ? price.getClass().getSimpleName() : "null") + ")").use();

    // No constraints - defaults to Double
    Number anyNumber = Jt.numberInput("Any Number")
                         .placeholder("Enter any number...")
                         .use();

    Jt
        .text("Any number: " + anyNumber + " (type: " + (anyNumber != null ?
            anyNumber.getClass().getSimpleName() :
            "null") + ")")
        .use();

    // Integer with large range
    Number count = Jt.numberInput("Item Count")
                     .minValue(1L)
                     .value(100L)
                     .help("Number of items to process")
                     .use();

    Jt.text("Count: " + count + " (type: " + (count != null ? count.getClass().getSimpleName() : "null") + ")").use();

    // Percentage (0.0 to 1.0)
    Integer percentage = Jt.numberInput("Completion %", Integer.class)
                           .minValue(0)
                           .maxValue(100)
                           .step(1)
                           .value(3)
                           .format("%0.0f")
                           .use();

    Jt.text("Completion: " + (percentage != null ? percentage + "%" : "null")).use();

    // Formatted number with custom step
    Double measurement = Jt.numberInput("Scientific Measurement", Double.class)
                           .minValue(0.0)
                           .maxValue(10000.0)
                           .step(100.1)
                           .value(500.5)
                           .format("%.3e")// Scientific notation with 3 decimal places
                           .help("Uses scientific notation formatting")
                           .icon(":material/science:")
                           .use();

    Jt.text("Measurement: " + measurement + " (formatted with scientific notation)").use();

    if (Jt.button("Show All Values").use()) {
      Jt.text("=== Summary ===").use();
      Jt.text("Age: " + age).use();
      Jt.text("Price: " + price).use();
      Jt.text("Any Number: " + anyNumber).use();
      Jt.text("Count: " + count).use();
      Jt.text("Percentage: " + percentage).use();
      Jt.text("Measurement: " + measurement).use();
    }
  }
}