Java8Filter.java

package streams;

import java.util.Arrays;
import java.util.List;

public class Java8Filter {

	private static List<kabnr> kabnrs = Arrays.asList(
			new kabnr(1234,0,2017, "1234"),
			new kabnr(1234,0,2017, "1590"),
			new kabnr(1234,0,2017, "1591"),
			new kabnr(1234,0,2017, "3456")
			);

	private static List<Vdrau> vdraus = Arrays.asList(
			new Vdrau(1234,0, "3456"),
			new Vdrau(1234,0, "1592"),
			new Vdrau(1234,0, "1590"),
			new Vdrau(1234,0, "1593"),
			new Vdrau(1234,0, "1594")
			);


}

kabnr.java

package streams;

public class kabnr {

	private int kan1;
	private int kan2;
	private String abnr;

	public kabnr(int kan1, int kan2, int kjah, String abnr) {
		this.kan1 = kan1;
		this.kan2 = kan2;
		this.abnr = abnr;
	}

	/**
	 * @return the kan1
	 */
	public int getKan1() {
		return kan1;
	}

	/**
	 * @param kan1 the kan1 to set
	 */
	public void setKan1(int kan1) {
		this.kan1 = kan1;
	}

	/**
	 * @return the kan2
	 */
	public int getKan2() {
		return kan2;
	}

	/**
	 * @param kan2 the kan2 to set
	 */
	public void setKan2(int kan2) {
		this.kan2 = kan2;
	}

	/**
	 * @return the abnr
	 */
	public String getAbnr() {
		return abnr;
	}

	/**
	 * @param abnr the abnr to set
	 */
	public void setAbnr(String abnr) {
		this.abnr = abnr;
	}

	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		return "kabnr [kan1=" + kan1 + ", kan2=" + kan2 + ", abnr=" + abnr + "]";
	}

	public boolean isPrintKabnrn() {
		return abnr.startsWith("159");
	}

}

Vdrau.java

package streams;

public class Vdrau {

	private int kan1;
	private int kan2;
	private String abnr;

	public Vdrau(int kan1, int kan2, String abnr) {
		this.kan1 = kan1;
		this.kan2 = kan2;
		this.abnr = abnr;
	}

	/**
	 * @return the kan1
	 */
	public int getKan1() {
		return kan1;
	}

	/**
	 * @param kan1 the kan1 to set
	 */
	public void setKan1(int kan1) {
		this.kan1 = kan1;
	}

	/**
	 * @return the kan2
	 */
	public int getKan2() {
		return kan2;
	}

	/**
	 * @param kan2 the kan2 to set
	 */
	public void setKan2(int kan2) {
		this.kan2 = kan2;
	}

	/**
	 * @return the abnr
	 */
	public String getAbnr() {
		return abnr;
	}

	/**
	 * @param abnr the abnr to set
	 */
	public void setAbnr(String abnr) {
		this.abnr = abnr;
	}

	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		return "Vdrau [kan1=" + kan1 + ", kan2=" + kan2 + ", abnr=" + abnr + "]";
	}

}