joshlong

data class Point(val x: Int, val y: Int)
data class Rectangle(val width: Int, val height: Int)
data class Circle(val radius: Int)

fun describePoint(point: Point) = when (point) {
    Point(0, 0) -> "Origin"
    Point(1, 2) -> "1,2"
    else -> throw IllegalStateException("Unexpected value: $point")
}

joshlong

// sdk install java 23.0.1-librca && sdk use java 23.0.1-librca
// java --enable-preview Main.java 
record Point(int x, int y) {}
sealed interface Shape permits Rectangle, Circle {}
record Rectangle(int width, int height) implements Shape {}
record Circle(int radius) implements Shape {}

void main() {
    var point = new Point(1, 2);
    println(describePoint(point));

joshlong

package org.springframework.http.client;

import org.springframework.core.task.SimpleAsyncTaskExecutor;
import org.springframework.http.HttpMethod;
import org.springframework.util.Assert;

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.time.Duration;

joshlong

package com.example.client;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.Bean;
import org.springframework.jdbc.core.simple.JdbcClient;
import org.springframework.security.authentication.event.AuthenticationSuccessEvent;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.mapping.GrantedAuthoritiesMapper;

joshlong

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.RestClient;

import java.util.Map;

joshlong

// I'd suggest you create an alias somewhere: 
// alias uao=java --enable-preview --source 21 $HOME/bin/UAO.java 
// RUN: uao $HOME/Downloads/demo.zip

import java.io.*; 
import java.util.function.*;
import java.util.* ; 

void main(String[] args) throws Exception {
    var zipFile = new File(args[0]);

joshlong

package com.example.demo;

import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

joshlong

@Configuration
class VcConfiguration {
    
    @Bean
    static ViewComponentResourceAotProcessor viewComponentResourceAotProcessor() {
        return new ViewComponentResourceAotProcessor();
    }
}

joshlong

package hollywood.framework;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.util.FileCopyUtils;

joshlong

#!/usr/bin/env bash  
PID=${1}
RSS=`ps -o rss ${PID} | tail -n1`
RSS=`bc <<< "scale=1; ${RSS}/1024"`
echo "${PID}: ${RSS}M"